From 40cc782866111edb6dd3a56e0e42f08a0a4e7395 Mon Sep 17 00:00:00 2001
From: nakul-krishnakumar <nakulkrishnakumar86@gmail.com>
Date: Tue, 28 Jul 2026 12:56:28 +0530
Subject: [PATCH 1/3] remove: delete `ml/base/sgd-classification/`

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diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/README.md
deleted file mode 100644
index 422657a437b1..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/README.md
+++ /dev/null
@@ -1,121 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# enum2str
-
-> Return the SGD classification learning rate scheduler string associated with an SGD classification learning rate scheduler enumeration constant.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var enum2str = require( '@stdlib/ml/base/sgd-classification/learning-rate-enum2str' );
-```
-
-#### enum2str( value )
-
-Returns the SGD classification learning rate scheduler string associated with an SGD classification learning rate scheduler enumeration constant.
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-
-var v = str2enum( 'basic' );
-// returns <number>
-
-var s = enum2str( v );
-// returns 'basic'
-```
-
-If unable to resolve an SGD classification learning rate scheduler string, the function returns `null`.
-
-```javascript
-var v = enum2str( -999999999 );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-var enum2str = require( '@stdlib/ml/base/sgd-classification/learning-rate-enum2str' );
-
-var str = enum2str( str2enum( 'basic' ) );
-// returns 'basic'
-
-str = enum2str( str2enum( 'constant' ) );
-// returns 'constant'
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/benchmark/benchmark.js
deleted file mode 100644
index 30f004c536b6..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/benchmark/benchmark.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-var pkg = require( './../package.json' ).name;
-var enum2str = require( './../lib' );
-
-
-// MAIN //
-
-bench( pkg, function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		str2enum( 'basic' ),
-		str2enum( 'constant' ),
-		str2enum( 'invscaling' ),
-		str2enum( 'pegasos' )
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = enum2str( values[ i%values.length ] );
-		if ( typeof out !== 'string' ) {
-			b.fail( 'should return a string' );
-		}
-	}
-	b.toc();
-	if ( !isString( out ) ) {
-		b.fail( 'should return a string' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/docs/repl.txt
deleted file mode 100644
index 0a2ce6da6f66..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/docs/repl.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-
-{{alias}}( value )
-    Returns the SGD classification learning rate scheduler string associated
-    with an SGD classification learning rate scheduler enumeration constant.
-
-    Parameters
-    ----------
-    value: integer
-        Learning rate scheduler enumeration constant.
-
-    Returns
-    -------
-    out: string|null
-        Learning rate scheduler string.
-
-    Examples
-    --------
-    > var out = {{alias}}( {{alias:@stdlib/ml/base/sgd-classification/learning-rate-str2enum}}( 'basic' ) )
-    'basic'
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/docs/types/index.d.ts
deleted file mode 100644
index 19f7d954ec3e..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/docs/types/index.d.ts
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the SGD classification learning rate scheduler string associated with an SGD classification learning rate scheduler enumeration constant.
-*
-* @param value - enumeration constant
-* @returns learning rate scheduler string
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-*
-* var v = str2enum( 'basic' );
-* // returns <number>
-*
-* var s = enum2str( v );
-* // returns 'basic'
-*/
-declare function enum2str( value: number ): string | null;
-
-
-// EXPORTS //
-
-export = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/docs/types/test.ts
deleted file mode 100644
index fe80992105ef..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/docs/types/test.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import enum2str = require( './index' );
-
-
-// TESTS //
-
-// The function returns a string or null...
-{
-	enum2str( 0 ); // $ExpectType string | null
-}
-
-// The compiler throws an error if not provided a number...
-{
-	enum2str( '10' ); // $ExpectError
-	enum2str( true ); // $ExpectError
-	enum2str( false ); // $ExpectError
-	enum2str( null ); // $ExpectError
-	enum2str( undefined ); // $ExpectError
-	enum2str( [] ); // $ExpectError
-	enum2str( {} ); // $ExpectError
-	enum2str( ( x: number ): number => x ); // $ExpectError
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/examples/index.js
deleted file mode 100644
index 98eb0a7ca9a9..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/examples/index.js
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-var enum2str = require( './../lib' );
-
-var str = enum2str( str2enum( 'constant' ) );
-console.log( str );
-// => 'constant'
-
-str = enum2str( str2enum( 'basic' ) );
-console.log( str );
-// => 'basic'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/lib/index.js
deleted file mode 100644
index 27cd6a3de69d..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/lib/index.js
+++ /dev/null
@@ -1,44 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the SGD classification learning rate scheduler string associated with an SGD classification learning rate scheduler enumeration constant.
-*
-* @module @stdlib/ml/base/sgd-classification/learning-rate-enum2str
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-* var enum2str = require( '@stdlib/ml/base/sgd-classification/learning-rate-enum2str' );
-*
-* var v = str2enum( 'basic' );
-* // returns <number>
-*
-* var s = enum2str( v );
-* // returns 'basic'
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/lib/main.js
deleted file mode 100644
index 95c173ae26e2..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/lib/main.js
+++ /dev/null
@@ -1,60 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
-var objectInverse = require( '@stdlib/object/inverse' );
-var enumeration = require( '@stdlib/ml/base/sgd-classification/learning-rates' ).enum;
-
-
-// VARIABLES //
-
-var hash = objectInverse( enumeration(), {
-	'duplicates': false
-});
-
-
-// MAIN //
-
-/**
-* Returns the SGD classification learning rate scheduler string associated with an SGD classification learning rate scheduler enumeration constant.
-*
-* @param {integer} value - learning rate scheduler enumeration constant
-* @returns {(string|null)} learning rate scheduler string or null
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-*
-* var v = str2enum( 'basic' );
-* // returns <number>
-*
-* var s = enum2str( v );
-* // returns 'basic'
-*/
-function enum2str( value ) {
-	var v = hash[ value ];
-	return ( isString( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
-}
-
-
-// EXPORTS //
-
-module.exports = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/package.json
deleted file mode 100644
index b72245fafc31..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/learning-rate-enum2str",
-  "version": "0.0.0",
-  "description": "Return the SGD classification learning rate scheduler string associated with an SGD classification learning rate scheduler enumeration constant.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "learning rate",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/test/test.js
deleted file mode 100644
index 656a695abf22..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-enum2str/test/test.js
+++ /dev/null
@@ -1,67 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-var enum2str = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'basic',
-	'constant',
-	'invscaling',
-	'pegasos'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof enum2str, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the string associated with an enumeration constant', function test( t ) {
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		-9999999,
-		-999999999,
-		-99999999999
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( enum2str( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/README.md
deleted file mode 100644
index e11fa2bfb2e4..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/README.md
+++ /dev/null
@@ -1,124 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# resolve
-
-> Return the enumeration constant associated with a supported SGD classification learning rate scheduler value.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var resolve = require( '@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum' );
-```
-
-#### resolve( value )
-
-Returns the enumeration constant associated with a supported SGD classification learning rate scheduler value.
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-
-var v = resolve( 'basic' );
-// returns <number>
-
-v = resolve( str2enum( 'constant' ) );
-// returns <number>
-```
-
-If unable to resolve an enumeration constant, the function returns `null`.
-
-```javascript
-var v = resolve( 'beep' );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-## Notes
-
--   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var resolve = require( '@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum' );
-
-var v = resolve( 'basic' );
-// returns <number>
-
-v = resolve( 'constant' );
-// returns <number>
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/benchmark/benchmark.js
deleted file mode 100644
index 6051662a9725..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/benchmark/benchmark.js
+++ /dev/null
@@ -1,85 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-var format = require( '@stdlib/string/format' );
-var pkg = require( './../package.json' ).name;
-var resolve = require( './../lib' );
-
-
-// MAIN //
-
-bench( format( '%s::string', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		'basic',
-		'constant',
-		'invscaling',
-		'pegasos'
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'number' ) {
-			b.fail( 'should return a number' );
-		}
-	}
-	b.toc();
-	if ( !isInteger( out ) ) {
-		b.fail( 'should return an integer' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
-
-bench( format( '%s::integer', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		str2enum( 'basic' ),
-		str2enum( 'constant' ),
-		str2enum( 'invscaling' ),
-		str2enum( 'pegasos' )
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'number' ) {
-			b.fail( 'should return a number' );
-		}
-	}
-	b.toc();
-	if ( !isInteger( out ) ) {
-		b.fail( 'should return an integer' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/docs/repl.txt
deleted file mode 100644
index 16995312e2fb..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/docs/repl.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-
-{{alias}}( value )
-    Returns the enumeration constant associated with a supported SGD
-    classification learning rate scheduler value.
-
-    Downstream consumers of this function should *not* rely on specific integer
-    values (e.g., `BASIC == 0`). Instead, the function should be used in an
-    opaque manner.
-
-    Parameters
-    ----------
-    value: any
-        Learning rate scheduler value.
-
-    Returns
-    -------
-    out: integer|null
-        Enumeration constant.
-
-    Examples
-    --------
-    > var out = {{alias}}( 'basic' )
-    <number>
-    > out = {{alias}}( {{alias:@stdlib/ml/base/sgd-classification/learning-rate-str2enum}}( 'basic' ) )
-    <number>
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/docs/types/index.d.ts
deleted file mode 100644
index 71049f343e2f..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/docs/types/index.d.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the enumeration constant associated with a supported SGD classification learning rate scheduler value.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param value - learning rate scheduler value
-* @returns enumeration constant
-*
-* @example
-* var v = resolve( 'basic' );
-* // returns <number>
-*/
-declare function resolve( value: any ): number | null;
-
-
-// EXPORTS //
-
-export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/docs/types/test.ts
deleted file mode 100644
index 125d9f7a122e..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/docs/types/test.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import resolve = require( './index' );
-
-
-// TESTS //
-
-// The function returns a number or null...
-{
-	resolve( 0 ); // $ExpectType number | null
-	resolve( 'basic' ); // $ExpectType number | null
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/examples/index.js
deleted file mode 100644
index 8e913704a76b..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/examples/index.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var resolve = require( './../lib' );
-
-var v = resolve( 'basic' );
-console.log( v );
-// => <number>
-
-v = resolve( 'constant' );
-console.log( v );
-// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/lib/index.js
deleted file mode 100644
index 9d24b164a7ea..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/lib/index.js
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the enumeration constant associated with a supported SGD classification learning rate scheduler value.
-*
-* @module @stdlib/ml/base/sgd-classification/learning-rate-resolve-enum
-*
-* @example
-* var resolve = require( '@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum' );
-*
-* var v = resolve( 'basic' );
-* // returns <number>
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/lib/main.js
deleted file mode 100644
index 59113eefccae..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/lib/main.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var enum2str = require( '@stdlib/ml/base/sgd-classification/learning-rate-enum2str' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-
-
-// MAIN //
-
-/**
-* Returns the enumeration constant associated with a supported SGD classification learning rate scheduler value.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param {*} value - learning rate scheduler value
-* @returns {(integer|null)} enumeration constant or null
-*
-* @example
-* var v = resolve( 'basic' );
-* // returns <number>
-*/
-function resolve( value ) {
-	var t = ( typeof value );
-	if ( t === 'number' ) {
-		return ( enum2str( value ) ) ? value : null;
-	}
-	if ( t === 'string' ) {
-		return str2enum( value );
-	}
-	return null;
-}
-
-
-// EXPORTS //
-
-module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/package.json
deleted file mode 100644
index 785517143065..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum",
-  "version": "0.0.0",
-  "description": "Return the enumeration constant associated with a supported SGD classification learning rate scheduler value.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "learning rate",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/test/test.js
deleted file mode 100644
index a96b6fc9386e..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-enum/test/test.js
+++ /dev/null
@@ -1,76 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-var resolve = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'basic',
-	'constant',
-	'invscaling',
-	'pegasos'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the enumeration constant associated with an SGD classification learning rate scheduler value', function test( t ) {
-	var v;
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		v = str2enum( VALUES[ i ] );
-		t.strictEqual( resolve( VALUES[ i ] ), v, 'returns expected value' );
-		t.strictEqual( resolve( v ), v, 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		'beep',
-		'boop',
-		'foo',
-		'bar',
-		-99999999,
-		-9999999999,
-		-9999999999999,
-		true,
-		false
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/README.md
deleted file mode 100644
index 14bdd51cce79..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/README.md
+++ /dev/null
@@ -1,121 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# resolve
-
-> Return the learning rate scheduler string associated with a supported SGD classification learning rate scheduler value.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var resolve = require( '@stdlib/ml/base/sgd-classification/learning-rate-resolve-str' );
-```
-
-#### resolve( value )
-
-Returns the learning rate scheduler string associated with a supported SGD classification learning rate scheduler value.
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-
-var v = resolve( 'constant' );
-// returns 'constant'
-
-v = resolve( str2enum( 'constant' ) );
-// returns 'constant'
-```
-
-If unable to resolve an SGD classification learning rate scheduler string, the function returns `null`.
-
-```javascript
-var v = resolve( 'beep' );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-var resolve = require( '@stdlib/ml/base/sgd-classification/learning-rate-resolve-str' );
-
-var v = resolve( str2enum( 'constant' ) );
-// returns 'constant'
-
-v = resolve( str2enum( 'basic' ) );
-// returns 'basic'
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/benchmark/benchmark.js
deleted file mode 100644
index 54f10fd58dec..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/benchmark/benchmark.js
+++ /dev/null
@@ -1,85 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-var format = require( '@stdlib/string/format' );
-var pkg = require( './../package.json' ).name;
-var resolve = require( './../lib' );
-
-
-// MAIN //
-
-bench( format( '%s::string', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		'basic',
-		'constant',
-		'invscaling',
-		'pegasos'
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'string' ) {
-			b.fail( 'should return a string' );
-		}
-	}
-	b.toc();
-	if ( !isString( out ) ) {
-		b.fail( 'should return a string' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
-
-bench( format( '%s::integer', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		str2enum( 'basic' ),
-		str2enum( 'constant' ),
-		str2enum( 'invscaling' ),
-		str2enum( 'pegasos' )
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'string' ) {
-			b.fail( 'should return a string' );
-		}
-	}
-	b.toc();
-	if ( !isString( out ) ) {
-		b.fail( 'should return a string' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/docs/repl.txt
deleted file mode 100644
index bb668b6cc3f3..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/docs/repl.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-
-{{alias}}( value )
-    Returns the learning rate scheduler string associated with a supported SGD
-    classification learning rate scheduler value.
-
-    Parameters
-    ----------
-    value: any
-        Learning rate scheduler value.
-
-    Returns
-    -------
-    out: string|null
-        Learning rate scheduler string.
-
-    Examples
-    --------
-    > var out = {{alias}}( 'constant' )
-    'constant'
-    > out = {{alias}}( {{alias:@stdlib/ml/base/sgd-classification/learning-rate-str2enum}}( 'constant' ) )
-    'constant'
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/docs/types/index.d.ts
deleted file mode 100644
index 01289d897440..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/docs/types/index.d.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the learning rate scheduler string associated with a supported SGD classification learning rate scheduler value.
-*
-* @param value - learning rate scheduler value
-* @returns learning rate scheduler string or null
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-*
-* var v = resolve( str2enum( 'constant' ) );
-* // returns 'constant'
-*/
-declare function resolve( value: any ): string | null;
-
-
-// EXPORTS //
-
-export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/docs/types/test.ts
deleted file mode 100644
index d122510e714b..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/docs/types/test.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import resolve = require( './index' );
-
-
-// TESTS //
-
-// The function returns a string or null...
-{
-	resolve( 0 ); // $ExpectType string | null
-	resolve( 'constant' ); // $ExpectType string | null
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/examples/index.js
deleted file mode 100644
index 5fc4ab909923..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/examples/index.js
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-var resolve = require( './../lib' );
-
-var v = resolve( str2enum( 'constant' ) );
-console.log( v );
-// => 'constant'
-
-v = resolve( str2enum( 'basic' ) );
-console.log( v );
-// => 'basic'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/lib/index.js
deleted file mode 100644
index 1058ee0ac645..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/lib/index.js
+++ /dev/null
@@ -1,41 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the learning rate scheduler string associated with a supported SGD classification learning rate scheduler value.
-*
-* @module @stdlib/ml/base/sgd-classification/learning-rate-resolve-str
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-* var resolve = require( '@stdlib/ml/base/sgd-classification/learning-rate-resolve-str' );
-*
-* var v = resolve( str2enum( 'constant' ) );
-* // returns 'constant'
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/lib/main.js
deleted file mode 100644
index 01d31e646e6b..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/lib/main.js
+++ /dev/null
@@ -1,55 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var enum2str = require( '@stdlib/ml/base/sgd-classification/learning-rate-enum2str' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-
-
-// MAIN //
-
-/**
-* Returns the learning rate scheduler string associated with a supported SGD classification learning rate scheduler value.
-*
-* @param {*} value - learning rate scheduler value
-* @returns {(string|null)} learning rate scheduler string or null
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-*
-* var v = resolve( str2enum( 'constant' ) );
-* // returns 'constant'
-*/
-function resolve( value ) {
-	var t = ( typeof value );
-	if ( t === 'string' ) {
-		return ( str2enum( value ) === null ) ? null : value;
-	}
-	if ( t === 'number' ) {
-		return enum2str( value );
-	}
-	return null;
-}
-
-
-// EXPORTS //
-
-module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/package.json
deleted file mode 100644
index 03177bebed75..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/learning-rate-resolve-str",
-  "version": "0.0.0",
-  "description": "Return the learning rate scheduler string associated with a supported SGD classification learning rate scheduler value.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "learning rate",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/test/test.js
deleted file mode 100644
index abf3d8bd55e6..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-resolve-str/test/test.js
+++ /dev/null
@@ -1,76 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-var resolve = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'basic',
-	'constant',
-	'invscaling',
-	'pegasos'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the string associated with an SGD classification learning rate scheduler value', function test( t ) {
-	var v;
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		v = str2enum( VALUES[ i ] );
-		t.strictEqual( resolve( VALUES[ i ] ), VALUES[ i ], 'returns expected value' );
-		t.strictEqual( resolve( v ), VALUES[ i ], 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		'beep',
-		'boop',
-		'foo',
-		'bar',
-		-99999999,
-		-9999999999,
-		-9999999999999,
-		true,
-		false
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/README.md
deleted file mode 100644
index 908ef11eda4a..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/README.md
+++ /dev/null
@@ -1,119 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# str2enum
-
-> Return the enumeration constant associated with an SGD classification learning rate scheduler string.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-```
-
-#### str2enum( learningRate )
-
-Returns the enumeration constant associated with an SGD classification learning rate scheduler string.
-
-```javascript
-var v = str2enum( 'constant' );
-// returns <number>
-```
-
-If unable to resolve an enumeration constant, the function returns `null`.
-
-```javascript
-var v = str2enum( 'beep' );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-## Notes
-
--   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-
-var v = str2enum( 'constant' );
-// returns <number>
-
-v = str2enum( 'basic' );
-// returns <number>
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/benchmark/benchmark.js
deleted file mode 100644
index 96cb8ab2ee54..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/benchmark/benchmark.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
-var pkg = require( './../package.json' ).name;
-var str2enum = require( './../lib' );
-
-
-// MAIN //
-
-bench( pkg, function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		'basic',
-		'constant',
-		'invscaling',
-		'pegasos'
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = str2enum( values[ i%values.length ] );
-		if ( typeof out !== 'number' ) {
-			b.fail( 'should return a number' );
-		}
-	}
-	b.toc();
-	if ( !isInteger( out ) ) {
-		b.fail( 'should return an integer' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/docs/repl.txt
deleted file mode 100644
index 12159a31e8c2..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/docs/repl.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-
-{{alias}}( learningRate )
-    Returns the enumeration constant associated with an SGD classification
-    learning rate scheduler string.
-
-    Downstream consumers of this function should *not* rely on specific integer
-    values (e.g., `BASIC == 0`). Instead, the function should be used in an
-    opaque manner.
-
-    Parameters
-    ----------
-    learningRate: string
-        Learning rate scheduler.
-
-    Returns
-    -------
-    out: integer|null
-        Enumeration constant.
-
-    Examples
-    --------
-    > var out = {{alias}}( 'constant' )
-    <number>
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/docs/types/index.d.ts
deleted file mode 100644
index 4069d5140271..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/docs/types/index.d.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the enumeration constant associated with an SGD classification learning rate scheduler string.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param learningRate - learning rate scheduler string
-* @returns enumeration constant
-*
-* @example
-* var v = str2enum( 'constant' );
-* // returns <number>
-*/
-declare function str2enum( learningRate: string ): number | null;
-
-
-// EXPORTS //
-
-export = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/docs/types/test.ts
deleted file mode 100644
index 7d45e990746e..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/docs/types/test.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import str2enum = require( './index' );
-
-
-// TESTS //
-
-// The function returns a number or null...
-{
-	str2enum( 'constant' ); // $ExpectType number | null
-}
-
-// The compiler throws an error if not provided a string...
-{
-	str2enum( 10 ); // $ExpectError
-	str2enum( true ); // $ExpectError
-	str2enum( false ); // $ExpectError
-	str2enum( null ); // $ExpectError
-	str2enum( undefined ); // $ExpectError
-	str2enum( [] ); // $ExpectError
-	str2enum( {} ); // $ExpectError
-	str2enum( ( x: number ): number => x ); // $ExpectError
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/examples/index.js
deleted file mode 100644
index 69f951ceb6bf..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/examples/index.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var str2enum = require( './../lib' );
-
-var v = str2enum( 'constant' );
-console.log( v );
-// => <number>
-
-v = str2enum( 'basic' );
-console.log( v );
-// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/lib/index.js
deleted file mode 100644
index 6534b9aeae3e..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/lib/index.js
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the enumeration constant associated with an SGD classification learning rate scheduler string.
-*
-* @module @stdlib/ml/base/sgd-classification/learning-rate-str2enum
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/learning-rate-str2enum' );
-*
-* var v = str2enum( 'constant' );
-* // returns <number>
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/lib/main.js
deleted file mode 100644
index 25885115397e..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/lib/main.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
-var enumeration = require( '@stdlib/ml/base/sgd-classification/learning-rates' ).enum;
-
-
-// VARIABLES //
-
-var ENUM = enumeration();
-
-
-// MAIN //
-
-/**
-* Returns the enumeration constant associated with an SGD classification learning rate scheduler string.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param {string} learningRate - learning rate scheduler string
-* @returns {(integer|null)} integer value or null
-*
-* @example
-* var v = str2enum( 'constant' );
-* // returns <number>
-*/
-function str2enum( learningRate ) {
-	var v = ENUM[ learningRate ];
-	return ( isNumber( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
-}
-
-
-// EXPORTS //
-
-module.exports = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/package.json
deleted file mode 100644
index 1de1c627f550..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/learning-rate-str2enum",
-  "version": "0.0.0",
-  "description": "Return the enumeration constant associated with an SGD classification learning rate scheduler string.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "learning rate",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/test/test.js
deleted file mode 100644
index a8c6e430bf32..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rate-str2enum/test/test.js
+++ /dev/null
@@ -1,68 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var enum2str = require( '@stdlib/ml/base/sgd-classification/learning-rate-enum2str' );
-var str2enum = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'constant',
-	'basic',
-	'invscaling',
-	'pegasos'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof str2enum, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the enumeration constant associated with a string', function test( t ) {
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		'beep',
-		'boop',
-		'foo',
-		'bar'
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( str2enum( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/README.md
deleted file mode 100644
index b010fea72323..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/README.md
+++ /dev/null
@@ -1,190 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# Learning rates
-
-> SGD classification learning rate schedulers.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var learningRates = require( '@stdlib/ml/base/sgd-classification/learning-rates' );
-```
-
-#### learningRates()
-
-Returns a list of SGD classification learning rate schedulers.
-
-```javascript
-var out = learningRates();
-// e.g., returns [ 'basic', 'constant', 'invscaling', 'pegasos' ]
-```
-
-The output array contains the following learning rate schedulers:
-
--   `basic`: basic learning rate function according to the formula `10/(10+t)` where `t` is the current iteration.
--   `constant`: constant learning rate function.
--   `invscaling`: inverse scaling learning rate function according to the formula `eta0/pow(t, power_t)` where `eta0` is the initial learning rate and `power_t` is the exponent controlling how quickly the learning rate decreases.
--   `pegasos`: Pegasos learning rate function according to the formula `1/(lambda*t)` where `t` is the current iteration and `lambda` is the regularization parameter.
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var contains = require( '@stdlib/array/base/assert/contains' ).factory;
-var learningRates = require( '@stdlib/ml/base/sgd-classification/learning-rates' );
-
-var isLearningRate = contains( learningRates() );
-
-var bool = isLearningRate( 'constant' );
-// returns true
-
-bool = isLearningRate( 'pegasos' );
-// returns true
-
-bool = isLearningRate( 'beep' );
-// returns false
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- C interface documentation. -->
-
-* * *
-
-<section class="c">
-
-## C APIs
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- C usage documentation. -->
-
-<section class="usage">
-
-### Usage
-
-```c
-#include "stdlib/ml/base/sgd-classification/learning_rates.h"
-```
-
-#### STDLIB_ML_SGD_CLASSIFICATION_LEARNING_RATE
-
-An enumeration of SGD classification learning rate schedulers with the following fields:
-
--   **STDLIB_ML_SGD_CLASSIFICATION_BASIC**: basic learning rate function according to the formula `10/(10+t)` where `t` is the current iteration.
--   **STDLIB_ML_SGD_CLASSIFICATION_CONSTANT**: constant learning rate function.
--   **STDLIB_ML_SGD_CLASSIFICATION_INVSCALING**: inverse scaling learning rate function according to the formula `eta0/pow(t, power_t)` where `eta0` is the initial learning rate and `power_t` is the exponent controlling how quickly the learning rate decreases.
--   **STDLIB_ML_SGD_CLASSIFICATION_PEGASOS**: Pegasos learning rate function according to the formula `1/(lambda*t)` where `t` is the current iteration and `lambda` is the regularization parameter.
-
-```c
-#include "stdlib/ml/base/sgd-classification/learning_rates.h"
-
-const enum STDLIB_ML_SGD_CLASSIFICATION_LEARNING_RATE v = STDLIB_ML_SGD_CLASSIFICATION_BASIC;
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-### Notes
-
--   Enumeration constants should be considered opaque values, and one should **not** rely on specific integer values.
-
-</section>
-
-<!-- /.notes -->
-
-<!-- C API usage examples. -->
-
-<section class="examples">
-
-</section>
-
-<!-- /.examples -->
-
-</section>
-
-<!-- /.c -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/benchmark/benchmark.js
deleted file mode 100644
index 95c330ebd9fb..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/benchmark/benchmark.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isStringArray = require( '@stdlib/assert/is-string-array' ).primitives;
-var pkg = require( './../package.json' ).name;
-var learningRates = require( './../lib' );
-
-
-// MAIN //
-
-bench( pkg, function benchmark( b ) {
-	var out;
-	var i;
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = learningRates();
-		if ( out.length < 2 ) {
-			b.fail( 'should return an array' );
-		}
-	}
-	b.toc();
-	if ( !isStringArray( out ) ) {
-		b.fail( 'should return an array of strings' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/docs/repl.txt
deleted file mode 100644
index 6128e38d404a..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/docs/repl.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-
-{{alias}}()
-    Returns a list of SGD classification learning rate schedulers.
-
-    The output array contains the following learning rate schedulers:
-
-    - basic: basic learning rate function according to the formula `10/(10+t)`
-    where `t` is the current iteration.
-    - constant: constant learning rate function.
-    - invscaling: inverse scaling learning rate function according to the
-    formula `eta0/pow(t, power_t)` where `eta0` is the initial learning rate and
-    `power_t` is the exponent controlling how quickly the learning rate
-    decreases.
-    - pegasos: Pegasos learning rate function according to the formula
-    `1/(lambda*t)` where `t` is the current iteration and `lambda` is the
-    regularization parameter.
-
-    Returns
-    -------
-    out: Array<string>
-        List of learning rate schedulers.
-
-    Examples
-    --------
-    > var out = {{alias}}()
-    [...]
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/docs/types/index.d.ts
deleted file mode 100644
index dcffa578ea70..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/docs/types/index.d.ts
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns a list of SGD classification learning rate schedulers.
-*
-* @returns list of learning rate schedulers
-*
-* @example
-* var list = learningRates();
-* // e.g., returns [ 'basic', 'constant', 'invscaling', 'pegasos' ]
-*/
-declare function learningRates(): Array<string>;
-
-
-// EXPORTS //
-
-export = learningRates;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/docs/types/test.ts
deleted file mode 100644
index c8605c6f84de..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/docs/types/test.ts
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import learningRates = require( './index' );
-
-
-// TESTS //
-
-// The function returns an array of strings...
-{
-	learningRates(); // $ExpectType string[]
-}
-
-// The compiler throws an error if the function is provided any arguments...
-{
-	learningRates( 9 ); // $ExpectError
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/examples/index.js
deleted file mode 100644
index c7427e0fe2fd..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/examples/index.js
+++ /dev/null
@@ -1,36 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var contains = require( '@stdlib/array/base/assert/contains' ).factory;
-var learningRates = require( './../lib' );
-
-var isLearningRate = contains( learningRates() );
-
-var bool = isLearningRate( 'basic' );
-console.log( bool );
-// => true
-
-bool = isLearningRate( 'constant' );
-console.log( bool );
-// => true
-
-bool = isLearningRate( 'beep' );
-console.log( bool );
-// => false
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/include/stdlib/ml/base/sgd-classification/learning_rates.h b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/include/stdlib/ml/base/sgd-classification/learning_rates.h
deleted file mode 100644
index 4c6f37b1bc21..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/include/stdlib/ml/base/sgd-classification/learning_rates.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-#ifndef STDLIB_ML_BASE_SGD_CLASSIFICATION_LEARNING_RATES_H
-#define STDLIB_ML_BASE_SGD_CLASSIFICATION_LEARNING_RATES_H
-
-/**
-* Enumeration of SGD classification learning rate schedulers.
-*/
-enum STDLIB_ML_SGD_CLASSIFICATION_LEARNING_RATE {
-	// Basic learning rate function according to the formula `10/(10+t)` where `t` is the current iteration:
-	STDLIB_ML_SGD_CLASSIFICATION_BASIC = 0,
-
-	// Constant learning rate function:
-	STDLIB_ML_SGD_CLASSIFICATION_CONSTANT,
-
-	// Inverse scaling learning rate function according to the formula `eta0/pow(t, power_t)` where `eta0` is the initial learning rate and `power_t` is the exponent controlling how quickly the learning rate decreases:
-	STDLIB_ML_SGD_CLASSIFICATION_INVSCALING,
-
-	// Pegasos learning rate function according to the formula `1/(lambda*t)` where `t` is the current iteration and `lambda` is the regularization parameter:
-	STDLIB_ML_SGD_CLASSIFICATION_PEGASOS
-};
-
-#endif // !STDLIB_ML_BASE_SGD_CLASSIFICATION_LEARNING_RATES_H
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/data.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/data.json
deleted file mode 100644
index 9f4424ed10e9..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/data.json
+++ /dev/null
@@ -1,6 +0,0 @@
-[
-  "basic",
-  "constant",
-  "invscaling",
-  "pegasos"
-]
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/enum.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/enum.js
deleted file mode 100644
index 27c8b2643a09..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/enum.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MAIN //
-
-/**
-* Returns an object mapping supported learning rate schedulers to integer values for purposes of C inter-operation.
-*
-* ## Notes
-*
-* -   Downstream consumers of this mapping should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the object should be used in an opaque manner.
-* -   The main purpose of this function is JavaScript and C inter-operation.
-*
-* @returns {Object} object mapping supported learning rate schedulers to integer values
-*
-* @example
-* var table = enumerated();
-* // returns <Object>
-*/
-function enumerated() {
-	// NOTE: the following should match the C `learning rates.h` enumeration!!!!
-	return {
-		// Basic learning rate function according to the formula `10/(10+t)` where `t` is the current iteration:
-		'basic': 0,
-
-		// Constant learning rate function:
-		'constant': 1,
-
-		// Inverse scaling learning rate function according to the formula `eta0/pow(t, power_t)` where `eta0` is the initial learning rate and `power_t` is the exponent controlling how quickly the learning rate decreases:
-		'invscaling': 2,
-
-		// Pegasos learning rate function according to the formula `1/(lambda*t)` where `t` is the current iteration and `lambda` is the regularization parameter:
-		'pegasos': 3
-	};
-}
-
-
-// EXPORTS //
-
-module.exports = enumerated;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/index.js
deleted file mode 100644
index 9af59ae848b9..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/index.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return a list of SGD classification learning rate schedulers.
-*
-* @module @stdlib/ml/base/sgd-classification/learning-rates
-*
-* @example
-* var learningRates = require( '@stdlib/ml/base/sgd-classification/learning-rates' );
-*
-* var list = learningRates();
-* // e.g., returns [ 'basic', 'constant', 'invscaling', 'pegasos' ]
-*/
-
-// MODULES //
-
-var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
-var main = require( './main.js' );
-var enumeration = require( './enum.js' );
-
-
-// MAIN //
-
-setReadOnly( main, 'enum', enumeration );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/main.js
deleted file mode 100644
index fc7d1e0cee31..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/lib/main.js
+++ /dev/null
@@ -1,44 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var DATA = require( './data.json' );
-
-
-// MAIN //
-
-/**
-* Returns a list of SGD classification learning rate schedulers.
-*
-* @returns {Array<string>} list of learning rate schedulers
-*
-* @example
-* var list = learningRates();
-* // e.g., returns [ 'basic', 'constant', 'invscaling', 'pegasos' ]
-*/
-function learningRates() {
-	return DATA.slice();
-}
-
-
-// EXPORTS //
-
-module.exports = learningRates;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/manifest.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/manifest.json
deleted file mode 100644
index 844d692f6439..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/manifest.json
+++ /dev/null
@@ -1,36 +0,0 @@
-{
-  "options": {},
-  "fields": [
-    {
-      "field": "src",
-      "resolve": true,
-      "relative": true
-    },
-    {
-      "field": "include",
-      "resolve": true,
-      "relative": true
-    },
-    {
-      "field": "libraries",
-      "resolve": false,
-      "relative": false
-    },
-    {
-      "field": "libpath",
-      "resolve": true,
-      "relative": false
-    }
-  ],
-  "confs": [
-    {
-      "src": [],
-      "include": [
-        "./include"
-      ],
-      "libraries": [],
-      "libpath": [],
-      "dependencies": []
-    }
-  ]
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/package.json
deleted file mode 100644
index 80efce55d631..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/package.json
+++ /dev/null
@@ -1,67 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/learning-rates",
-  "version": "0.0.0",
-  "description": "SGD classification learning rate schedulers.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "include": "./include",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "learning rates",
-    "learning rate schedulers",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/test/test.js
deleted file mode 100644
index 76e6cb305328..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/learning-rates/test/test.js
+++ /dev/null
@@ -1,77 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var hasOwnProp = require( '@stdlib/assert/has-own-property' );
-var isNonNegativeInteger = require( '@stdlib/assert/is-nonnegative-integer' ).isPrimitive;
-var learningRates = require( './../lib' );
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof learningRates, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns a list of SGD classification learning rate schedulers', function test( t ) {
-	var expected;
-	var actual;
-
-	expected = [
-		'basic',
-		'constant',
-		'invscaling',
-		'pegasos'
-	];
-	actual = learningRates();
-
-	t.deepEqual( actual, expected, 'returns expected value' );
-	t.end();
-});
-
-tape( 'attached to the main function is an `enum` method to return an object mapping learning rate schedulers to integer values for C inter-operation', function test( t ) {
-	var obj;
-	var o;
-	var i;
-
-	t.strictEqual( hasOwnProp( learningRates, 'enum' ), true, 'has property' );
-	t.strictEqual( typeof learningRates.enum, 'function', 'has method' );
-
-	obj = learningRates.enum();
-	t.strictEqual( typeof obj, 'object', 'returns expected value' );
-
-	// List of values which should be supported...
-	o = [
-		'basic',
-		'constant',
-		'invscaling',
-		'pegasos'
-	];
-	for ( i = 0; i < o.length; i++ ) {
-		t.strictEqual( hasOwnProp( obj, o[ i ] ), true, 'has property `' + o[ i ] + '`' );
-		t.strictEqual( isNonNegativeInteger( obj[ o[ i ] ] ), true, 'returns expected value' );
-	}
-
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/README.md
deleted file mode 100644
index 55d309dfc269..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/README.md
+++ /dev/null
@@ -1,121 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# enum2str
-
-> Return the SGD classification loss function string associated with an SGD classification loss function enumeration constant.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var enum2str = require( '@stdlib/ml/base/sgd-classification/loss-function-enum2str' );
-```
-
-#### enum2str( value )
-
-Returns the SGD classification loss function string associated with an SGD classification loss function enumeration constant.
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-
-var v = str2enum( 'epsilon-insensitive' );
-// returns <number>
-
-var s = enum2str( v );
-// returns 'epsilon-insensitive'
-```
-
-If unable to resolve an SGD classification loss function string, the function returns `null`.
-
-```javascript
-var v = enum2str( -999999999 );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-var enum2str = require( '@stdlib/ml/base/sgd-classification/loss-function-enum2str' );
-
-var str = enum2str( str2enum( 'epsilon-insensitive' ) );
-// returns 'epsilon-insensitive'
-
-str = enum2str( str2enum( 'hinge' ) );
-// returns 'hinge'
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/benchmark/benchmark.js
deleted file mode 100644
index a0a8ff730a79..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/benchmark/benchmark.js
+++ /dev/null
@@ -1,62 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-var pkg = require( './../package.json' ).name;
-var enum2str = require( './../lib' );
-
-
-// MAIN //
-
-bench( pkg, function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		str2enum( 'epsilon-insensitive' ),
-		str2enum( 'hinge' ),
-		str2enum( 'huber' ),
-		str2enum( 'log' ),
-		str2enum( 'modified-huber' ),
-		str2enum( 'perceptron' ),
-		str2enum( 'squared-epsilon-insensitive' ),
-		str2enum( 'squared-error' ),
-		str2enum( 'squared-hinge' )
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = enum2str( values[ i%values.length ] );
-		if ( typeof out !== 'string' ) {
-			b.fail( 'should return a string' );
-		}
-	}
-	b.toc();
-	if ( !isString( out ) ) {
-		b.fail( 'should return a string' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/docs/repl.txt
deleted file mode 100644
index 5910c47d09bc..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/docs/repl.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-
-{{alias}}( value )
-    Returns the SGD classification loss function string associated with an SGD
-    classification loss function enumeration constant.
-
-    Parameters
-    ----------
-    value: integer
-        Loss function enumeration constant.
-
-    Returns
-    -------
-    out: string|null
-        Loss function string.
-
-    Examples
-    --------
-    > var out = {{alias}}( {{alias:@stdlib/ml/base/sgd-classification/loss-function-str2enum}}( 'epsilon-insensitive' ) )
-    'epsilon-insensitive'
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/docs/types/index.d.ts
deleted file mode 100644
index f63694a7bfd2..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/docs/types/index.d.ts
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the SGD classification loss function string associated with an SGD classification loss function enumeration constant.
-*
-* @param value - enumeration constant
-* @returns loss function string
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-*
-* var v = str2enum( 'epsilon-insensitive' );
-* // returns <number>
-*
-* var s = enum2str( v );
-* // returns 'epsilon-insensitive'
-*/
-declare function enum2str( value: number ): string | null;
-
-
-// EXPORTS //
-
-export = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/docs/types/test.ts
deleted file mode 100644
index fe80992105ef..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/docs/types/test.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import enum2str = require( './index' );
-
-
-// TESTS //
-
-// The function returns a string or null...
-{
-	enum2str( 0 ); // $ExpectType string | null
-}
-
-// The compiler throws an error if not provided a number...
-{
-	enum2str( '10' ); // $ExpectError
-	enum2str( true ); // $ExpectError
-	enum2str( false ); // $ExpectError
-	enum2str( null ); // $ExpectError
-	enum2str( undefined ); // $ExpectError
-	enum2str( [] ); // $ExpectError
-	enum2str( {} ); // $ExpectError
-	enum2str( ( x: number ): number => x ); // $ExpectError
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/examples/index.js
deleted file mode 100644
index 1a4fd46eb551..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/examples/index.js
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-var enum2str = require( './../lib' );
-
-var str = enum2str( str2enum( 'hinge' ) );
-console.log( str );
-// => 'hinge'
-
-str = enum2str( str2enum( 'epsilon-insensitive' ) );
-console.log( str );
-// => 'epsilon-insensitive'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/lib/index.js
deleted file mode 100644
index 743279309015..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/lib/index.js
+++ /dev/null
@@ -1,44 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the SGD classification loss function string associated with an SGD classification loss function enumeration constant.
-*
-* @module @stdlib/ml/base/sgd-classification/loss-function-enum2str
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-* var enum2str = require( '@stdlib/ml/base/sgd-classification/loss-function-enum2str' );
-*
-* var v = str2enum( 'epsilon-insensitive' );
-* // returns <number>
-*
-* var s = enum2str( v );
-* // returns 'epsilon-insensitive'
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/lib/main.js
deleted file mode 100644
index 6b0e3744a68d..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/lib/main.js
+++ /dev/null
@@ -1,60 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
-var objectInverse = require( '@stdlib/object/inverse' );
-var enumeration = require( '@stdlib/ml/base/sgd-classification/loss-functions' ).enum;
-
-
-// VARIABLES //
-
-var hash = objectInverse( enumeration(), {
-	'duplicates': false
-});
-
-
-// MAIN //
-
-/**
-* Returns the SGD classification loss function string associated with an SGD classification loss function enumeration constant.
-*
-* @param {integer} value - loss function enumeration constant
-* @returns {(string|null)} loss function string or null
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-*
-* var v = str2enum( 'epsilon-insensitive' );
-* // returns <number>
-*
-* var s = enum2str( v );
-* // returns 'epsilon-insensitive'
-*/
-function enum2str( value ) {
-	var v = hash[ value ];
-	return ( isString( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
-}
-
-
-// EXPORTS //
-
-module.exports = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/package.json
deleted file mode 100644
index d08959ad4ade..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/loss-function-enum2str",
-  "version": "0.0.0",
-  "description": "Return the SGD classification loss function string associated with an SGD classification loss function enumeration constant.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "loss function",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/test/test.js
deleted file mode 100644
index 3b79de34d98f..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-enum2str/test/test.js
+++ /dev/null
@@ -1,72 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-var enum2str = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'epsilon-insensitive',
-	'hinge',
-	'huber',
-	'log',
-	'modified-huber',
-	'perceptron',
-	'squared-epsilon-insensitive',
-	'squared-error',
-	'squared-hinge'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof enum2str, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the string associated with an enumeration constant', function test( t ) {
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		-9999999,
-		-999999999,
-		-99999999999
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( enum2str( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/README.md
deleted file mode 100644
index d26bd3e15a33..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/README.md
+++ /dev/null
@@ -1,124 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# resolve
-
-> Return the enumeration constant associated with a supported SGD classification loss function value.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var resolve = require( '@stdlib/ml/base/sgd-classification/loss-function-resolve-enum' );
-```
-
-#### resolve( value )
-
-Returns the enumeration constant associated with a supported SGD classification loss function value.
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-
-var v = resolve( 'epsilon-insensitive' );
-// returns <number>
-
-v = resolve( str2enum( 'hinge' ) );
-// returns <number>
-```
-
-If unable to resolve an enumeration constant, the function returns `null`.
-
-```javascript
-var v = resolve( 'beep' );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-## Notes
-
--   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var resolve = require( '@stdlib/ml/base/sgd-classification/loss-function-resolve-enum' );
-
-var v = resolve( 'epsilon-insensitive' );
-// returns <number>
-
-v = resolve( 'hinge' );
-// returns <number>
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/benchmark/benchmark.js
deleted file mode 100644
index 577fc20c9315..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/benchmark/benchmark.js
+++ /dev/null
@@ -1,95 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-var format = require( '@stdlib/string/format' );
-var pkg = require( './../package.json' ).name;
-var resolve = require( './../lib' );
-
-
-// MAIN //
-
-bench( format( '%s::string', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		'epsilon-insensitive',
-		'hinge',
-		'huber',
-		'log',
-		'modified-huber',
-		'perceptron',
-		'squared-epsilon-insensitive',
-		'squared-error',
-		'squared-hinge'
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'number' ) {
-			b.fail( 'should return a number' );
-		}
-	}
-	b.toc();
-	if ( !isInteger( out ) ) {
-		b.fail( 'should return an integer' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
-
-bench( format( '%s::integer', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		str2enum( 'epsilon-insensitive' ),
-		str2enum( 'hinge' ),
-		str2enum( 'huber' ),
-		str2enum( 'log' ),
-		str2enum( 'modified-huber' ),
-		str2enum( 'perceptron' ),
-		str2enum( 'squared-epsilon-insensitive' ),
-		str2enum( 'squared-error' ),
-		str2enum( 'squared-hinge' )
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'number' ) {
-			b.fail( 'should return a number' );
-		}
-	}
-	b.toc();
-	if ( !isInteger( out ) ) {
-		b.fail( 'should return an integer' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/docs/repl.txt
deleted file mode 100644
index f7254f153648..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/docs/repl.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-
-{{alias}}( value )
-    Returns the enumeration constant associated with a supported SGD
-    classification loss function value.
-
-    Downstream consumers of this function should *not* rely on specific integer
-    values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be
-    used in an opaque manner.
-
-    Parameters
-    ----------
-    value: any
-        Loss function value.
-
-    Returns
-    -------
-    out: integer|null
-        Enumeration constant.
-
-    Examples
-    --------
-    > var out = {{alias}}( 'epsilon-insensitive' )
-    <number>
-    > out = {{alias}}( {{alias:@stdlib/ml/base/sgd-classification/loss-function-str2enum}}( 'epsilon-insensitive' ) )
-    <number>
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/docs/types/index.d.ts
deleted file mode 100644
index 66c8c54ac895..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/docs/types/index.d.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the enumeration constant associated with a supported SGD classification loss function value.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param value - loss function value
-* @returns enumeration constant
-*
-* @example
-* var v = resolve( 'epsilon-insensitive' );
-* // returns <number>
-*/
-declare function resolve( value: any ): number | null;
-
-
-// EXPORTS //
-
-export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/docs/types/test.ts
deleted file mode 100644
index eab6893aab19..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/docs/types/test.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import resolve = require( './index' );
-
-
-// TESTS //
-
-// The function returns a number or null...
-{
-	resolve( 0 ); // $ExpectType number | null
-	resolve( 'epsilon-insensitive' ); // $ExpectType number | null
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/examples/index.js
deleted file mode 100644
index 0d237af217d2..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/examples/index.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var resolve = require( './../lib' );
-
-var v = resolve( 'epsilon-insensitive' );
-console.log( v );
-// => <number>
-
-v = resolve( 'hinge' );
-console.log( v );
-// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/lib/index.js
deleted file mode 100644
index 2ce77b01dd2c..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/lib/index.js
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the enumeration constant associated with a supported SGD classification loss function value.
-*
-* @module @stdlib/ml/base/sgd-classification/loss-function-resolve-enum
-*
-* @example
-* var resolve = require( '@stdlib/ml/base/sgd-classification/loss-function-resolve-enum' );
-*
-* var v = resolve( 'epsilon-insensitive' );
-* // returns <number>
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/lib/main.js
deleted file mode 100644
index 8dbe87a62e52..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/lib/main.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var enum2str = require( '@stdlib/ml/base/sgd-classification/loss-function-enum2str' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-
-
-// MAIN //
-
-/**
-* Returns the enumeration constant associated with a supported SGD classification loss function value.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param {*} value - loss function value
-* @returns {(integer|null)} enumeration constant or null
-*
-* @example
-* var v = resolve( 'epsilon-insensitive' );
-* // returns <number>
-*/
-function resolve( value ) {
-	var t = ( typeof value );
-	if ( t === 'number' ) {
-		return ( enum2str( value ) ) ? value : null;
-	}
-	if ( t === 'string' ) {
-		return str2enum( value );
-	}
-	return null;
-}
-
-
-// EXPORTS //
-
-module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/package.json
deleted file mode 100644
index b0d757dd7042..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/loss-function-resolve-enum",
-  "version": "0.0.0",
-  "description": "Return the enumeration constant associated with a supported SGD classification loss function value.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "loss function",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/test/test.js
deleted file mode 100644
index 2464bd251eb4..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-enum/test/test.js
+++ /dev/null
@@ -1,81 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-var resolve = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'epsilon-insensitive',
-	'hinge',
-	'huber',
-	'log',
-	'modified-huber',
-	'perceptron',
-	'squared-epsilon-insensitive',
-	'squared-error',
-	'squared-hinge'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the enumeration constant associated with an SGD classification loss function value', function test( t ) {
-	var v;
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		v = str2enum( VALUES[ i ] );
-		t.strictEqual( resolve( VALUES[ i ] ), v, 'returns expected value' );
-		t.strictEqual( resolve( v ), v, 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		'beep',
-		'boop',
-		'foo',
-		'bar',
-		-99999999,
-		-9999999999,
-		-9999999999999,
-		true,
-		false
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/README.md
deleted file mode 100644
index 64cee653c72a..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/README.md
+++ /dev/null
@@ -1,121 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# resolve
-
-> Return the loss function string associated with a supported SGD classification loss function value.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var resolve = require( '@stdlib/ml/base/sgd-classification/loss-function-resolve-str' );
-```
-
-#### resolve( value )
-
-Returns the loss function string associated with a supported SGD classification loss function value.
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-
-var v = resolve( 'hinge' );
-// returns 'hinge'
-
-v = resolve( str2enum( 'hinge' ) );
-// returns 'hinge'
-```
-
-If unable to resolve an SGD classification loss function string, the function returns `null`.
-
-```javascript
-var v = resolve( 'beep' );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-var resolve = require( '@stdlib/ml/base/sgd-classification/loss-function-resolve-str' );
-
-var v = resolve( str2enum( 'hinge' ) );
-// returns 'hinge'
-
-v = resolve( str2enum( 'epsilon-insensitive' ) );
-// returns 'epsilon-insensitive'
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/benchmark/benchmark.js
deleted file mode 100644
index 9d362c26154c..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/benchmark/benchmark.js
+++ /dev/null
@@ -1,95 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-var format = require( '@stdlib/string/format' );
-var pkg = require( './../package.json' ).name;
-var resolve = require( './../lib' );
-
-
-// MAIN //
-
-bench( format( '%s::string', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		'epsilon-insensitive',
-		'hinge',
-		'huber',
-		'log',
-		'modified-huber',
-		'perceptron',
-		'squared-epsilon-insensitive',
-		'squared-error',
-		'squared-hinge'
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'string' ) {
-			b.fail( 'should return a string' );
-		}
-	}
-	b.toc();
-	if ( !isString( out ) ) {
-		b.fail( 'should return a string' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
-
-bench( format( '%s::integer', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		str2enum( 'epsilon-insensitive' ),
-		str2enum( 'hinge' ),
-		str2enum( 'huber' ),
-		str2enum( 'log' ),
-		str2enum( 'modified-huber' ),
-		str2enum( 'perceptron' ),
-		str2enum( 'squared-epsilon-insensitive' ),
-		str2enum( 'squared-error' ),
-		str2enum( 'squared-hinge' )
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'string' ) {
-			b.fail( 'should return a string' );
-		}
-	}
-	b.toc();
-	if ( !isString( out ) ) {
-		b.fail( 'should return a string' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/docs/repl.txt
deleted file mode 100644
index 53d6145da9e2..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/docs/repl.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-
-{{alias}}( value )
-    Returns the loss function string associated with a supported SGD
-    classification loss function value.
-
-    Parameters
-    ----------
-    value: any
-        Loss function value.
-
-    Returns
-    -------
-    out: string|null
-        Loss function string.
-
-    Examples
-    --------
-    > var out = {{alias}}( 'hinge' )
-    'hinge'
-    > out = {{alias}}( {{alias:@stdlib/ml/base/sgd-classification/loss-function-str2enum}}( 'hinge' ) )
-    'hinge'
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/docs/types/index.d.ts
deleted file mode 100644
index 1ed717add44f..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/docs/types/index.d.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the loss function string associated with a supported SGD classification loss function value.
-*
-* @param value - loss function value
-* @returns loss function string or null
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-*
-* var v = resolve( str2enum( 'hinge' ) );
-* // returns 'hinge'
-*/
-declare function resolve( value: any ): string | null;
-
-
-// EXPORTS //
-
-export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/docs/types/test.ts
deleted file mode 100644
index 524dc352b685..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/docs/types/test.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import resolve = require( './index' );
-
-
-// TESTS //
-
-// The function returns a string or null...
-{
-	resolve( 0 ); // $ExpectType string | null
-	resolve( 'hinge' ); // $ExpectType string | null
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/examples/index.js
deleted file mode 100644
index e2933a7a9983..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/examples/index.js
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-var resolve = require( './../lib' );
-
-var v = resolve( str2enum( 'hinge' ) );
-console.log( v );
-// => 'hinge'
-
-v = resolve( str2enum( 'epsilon-insensitive' ) );
-console.log( v );
-// => 'epsilon-insensitive'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/lib/index.js
deleted file mode 100644
index 4e04b6ed33d1..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/lib/index.js
+++ /dev/null
@@ -1,41 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the loss function string associated with a supported SGD classification loss function value.
-*
-* @module @stdlib/ml/base/sgd-classification/loss-function-resolve-str
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-* var resolve = require( '@stdlib/ml/base/sgd-classification/loss-function-resolve-str' );
-*
-* var v = resolve( str2enum( 'hinge' ) );
-* // returns 'hinge'
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/lib/main.js
deleted file mode 100644
index 917c429c4e7f..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/lib/main.js
+++ /dev/null
@@ -1,55 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var enum2str = require( '@stdlib/ml/base/sgd-classification/loss-function-enum2str' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-
-
-// MAIN //
-
-/**
-* Returns the loss function string associated with a supported SGD classification loss function value.
-*
-* @param {*} value - loss function value
-* @returns {(string|null)} loss function string or null
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-*
-* var v = resolve( str2enum( 'hinge' ) );
-* // returns 'hinge'
-*/
-function resolve( value ) {
-	var t = ( typeof value );
-	if ( t === 'string' ) {
-		return ( str2enum( value ) === null ) ? null : value;
-	}
-	if ( t === 'number' ) {
-		return enum2str( value );
-	}
-	return null;
-}
-
-
-// EXPORTS //
-
-module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/package.json
deleted file mode 100644
index 12c938f4785a..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/loss-function-resolve-str",
-  "version": "0.0.0",
-  "description": "Return the loss function string associated with a supported SGD classification loss function value.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "loss function",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/test/test.js
deleted file mode 100644
index b25fa6f377ba..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-resolve-str/test/test.js
+++ /dev/null
@@ -1,81 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-var resolve = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'epsilon-insensitive',
-	'hinge',
-	'huber',
-	'log',
-	'modified-huber',
-	'perceptron',
-	'squared-epsilon-insensitive',
-	'squared-error',
-	'squared-hinge'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the string associated with an SGD classification loss function value', function test( t ) {
-	var v;
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		v = str2enum( VALUES[ i ] );
-		t.strictEqual( resolve( VALUES[ i ] ), VALUES[ i ], 'returns expected value' );
-		t.strictEqual( resolve( v ), VALUES[ i ], 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		'beep',
-		'boop',
-		'foo',
-		'bar',
-		-99999999,
-		-9999999999,
-		-9999999999999,
-		true,
-		false
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/README.md
deleted file mode 100644
index 3d32a52b2ca9..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/README.md
+++ /dev/null
@@ -1,119 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# str2enum
-
-> Return the enumeration constant associated with an SGD classification loss function string.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-```
-
-#### str2enum( lossFunction )
-
-Returns the enumeration constant associated with an SGD classification loss function string.
-
-```javascript
-var v = str2enum( 'hinge' );
-// returns <number>
-```
-
-If unable to resolve an enumeration constant, the function returns `null`.
-
-```javascript
-var v = str2enum( 'beep' );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-## Notes
-
--   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-
-var v = str2enum( 'hinge' );
-// returns <number>
-
-v = str2enum( 'epsilon-insensitive' );
-// returns <number>
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/benchmark/benchmark.js
deleted file mode 100644
index 250a871eefda..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/benchmark/benchmark.js
+++ /dev/null
@@ -1,61 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
-var pkg = require( './../package.json' ).name;
-var str2enum = require( './../lib' );
-
-
-// MAIN //
-
-bench( pkg, function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		'epsilon-insensitive',
-		'hinge',
-		'huber',
-		'log',
-		'modified-huber',
-		'perceptron',
-		'squared-epsilon-insensitive',
-		'squared-error',
-		'squared-hinge'
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = str2enum( values[ i%values.length ] );
-		if ( typeof out !== 'number' ) {
-			b.fail( 'should return a number' );
-		}
-	}
-	b.toc();
-	if ( !isInteger( out ) ) {
-		b.fail( 'should return an integer' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/docs/repl.txt
deleted file mode 100644
index c0d45e78af0d..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/docs/repl.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-
-{{alias}}( lossFunction )
-    Returns the enumeration constant associated with an SGD classification loss
-    function string.
-
-    Downstream consumers of this function should *not* rely on specific integer
-    values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be
-    used in an opaque manner.
-
-    Parameters
-    ----------
-    lossFunction: string
-        Loss function.
-
-    Returns
-    -------
-    out: integer|null
-        Enumeration constant.
-
-    Examples
-    --------
-    > var out = {{alias}}( 'hinge' )
-    <number>
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/docs/types/index.d.ts
deleted file mode 100644
index 8f107a89ac95..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/docs/types/index.d.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the enumeration constant associated with an SGD classification loss function string.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param lossFunction - loss function string
-* @returns enumeration constant
-*
-* @example
-* var v = str2enum( 'hinge' );
-* // returns <number>
-*/
-declare function str2enum( lossFunction: string ): number | null;
-
-
-// EXPORTS //
-
-export = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/docs/types/test.ts
deleted file mode 100644
index 250ae7ed37c1..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/docs/types/test.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import str2enum = require( './index' );
-
-
-// TESTS //
-
-// The function returns a number or null...
-{
-	str2enum( 'hinge' ); // $ExpectType number | null
-}
-
-// The compiler throws an error if not provided a string...
-{
-	str2enum( 10 ); // $ExpectError
-	str2enum( true ); // $ExpectError
-	str2enum( false ); // $ExpectError
-	str2enum( null ); // $ExpectError
-	str2enum( undefined ); // $ExpectError
-	str2enum( [] ); // $ExpectError
-	str2enum( {} ); // $ExpectError
-	str2enum( ( x: number ): number => x ); // $ExpectError
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/examples/index.js
deleted file mode 100644
index 8c89d599d7d0..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/examples/index.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var str2enum = require( './../lib' );
-
-var v = str2enum( 'hinge' );
-console.log( v );
-// => <number>
-
-v = str2enum( 'epsilon-insensitive' );
-console.log( v );
-// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/lib/index.js
deleted file mode 100644
index 9d69cc925206..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/lib/index.js
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the enumeration constant associated with an SGD classification loss function string.
-*
-* @module @stdlib/ml/base/sgd-classification/loss-function-str2enum
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/loss-function-str2enum' );
-*
-* var v = str2enum( 'hinge' );
-* // returns <number>
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/lib/main.js
deleted file mode 100644
index 258725703538..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/lib/main.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
-var enumeration = require( '@stdlib/ml/base/sgd-classification/loss-functions' ).enum;
-
-
-// VARIABLES //
-
-var ENUM = enumeration();
-
-
-// MAIN //
-
-/**
-* Returns the enumeration constant associated with an SGD classification loss function string.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param {string} lossFunction - loss function string
-* @returns {(integer|null)} integer value or null
-*
-* @example
-* var v = str2enum( 'hinge' );
-* // returns <number>
-*/
-function str2enum( lossFunction ) {
-	var v = ENUM[ lossFunction ];
-	return ( isNumber( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
-}
-
-
-// EXPORTS //
-
-module.exports = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/package.json
deleted file mode 100644
index 4065a1160e9e..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/loss-function-str2enum",
-  "version": "0.0.0",
-  "description": "Return the enumeration constant associated with an SGD classification loss function string.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "loss function",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/test/test.js
deleted file mode 100644
index 13f990390f30..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-function-str2enum/test/test.js
+++ /dev/null
@@ -1,73 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var enum2str = require( '@stdlib/ml/base/sgd-classification/loss-function-enum2str' );
-var str2enum = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'epsilon-insensitive',
-	'hinge',
-	'huber',
-	'log',
-	'modified-huber',
-	'perceptron',
-	'squared-epsilon-insensitive',
-	'squared-error',
-	'squared-hinge'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof str2enum, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the enumeration constant associated with a string', function test( t ) {
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		'beep',
-		'boop',
-		'foo',
-		'bar'
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( str2enum( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/README.md
deleted file mode 100644
index 010419e81e15..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/README.md
+++ /dev/null
@@ -1,200 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# Loss functions
-
-> SGD classification loss functions.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var lossFunctions = require( '@stdlib/ml/base/sgd-classification/loss-functions' );
-```
-
-#### lossFunctions()
-
-Returns a list of SGD classification loss functions.
-
-```javascript
-var out = lossFunctions();
-// e.g., returns [ 'epsilon-insensitive', 'hinge', 'huber', 'log', 'modified-huber', 'perceptron', 'squared-epsilon-insensitive', 'squared-error', 'squared-hinge' ]
-```
-
-The output array contains the following loss functions:
-
--   `epsilon-insensitive`: penalty is the absolute value of the error whenever the absolute error exceeds epsilon and zero otherwise.
--   `hinge`: hinge loss function. Corresponds to a soft-margin linear Support Vector Machine (SVM), which can handle non-linearly separable data.
--   `huber`: squared-error loss for observations with error smaller than epsilon in magnitude, linear loss otherwise. Should be used in order to decrease the influence of outliers on the model fit.
--   `log`: logistic loss function. Corresponds to Logistic Regression.
--   `modified-huber`: Huber loss function variant for classification.
--   `perceptron`: hinge loss function without a margin. Corresponds to the original perceptron by Rosenblatt (1957).
--   `squared-epsilon-insensitive`: squared epsilon insensitive loss function.
--   `squared-error`: squared error loss (i.e., the squared difference of the observed and fitted values).
--   `squared-hinge`: squared hinge loss function SVM (L2-SVM).
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var contains = require( '@stdlib/array/base/assert/contains' ).factory;
-var lossFunction = require( '@stdlib/ml/base/sgd-classification/loss-functions' );
-
-var isLossFunction = contains( lossFunction() );
-
-var bool = isLossFunction( 'hinge' );
-// returns true
-
-bool = isLossFunction( 'log' );
-// returns true
-
-bool = isLossFunction( 'beep' );
-// returns false
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- C interface documentation. -->
-
-* * *
-
-<section class="c">
-
-## C APIs
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- C usage documentation. -->
-
-<section class="usage">
-
-### Usage
-
-```c
-#include "stdlib/ml/base/sgd-classification/loss_functions.h"
-```
-
-#### STDLIB_ML_SGD_CLASSIFICATION_LOSS_FUNCTION
-
-An enumeration of SGD classification loss functions with the following fields:
-
--   **STDLIB_ML_SGD_CLASSIFICATION_EPSILON_INSENSITIVE**: penalty is the absolute value of the error whenever the absolute error exceeds epsilon and zero otherwise.
--   **STDLIB_ML_SGD_CLASSIFICATION_HINGE**: corresponds to a soft-margin linear Support Vector Machine (SVM), which can handle non-linearly separable data.
--   **STDLIB_ML_SGD_CLASSIFICATION_HUBER**: squared-error loss for observations with error smaller than epsilon in magnitude, linear loss otherwise.
--   **STDLIB_ML_SGD_CLASSIFICATION_LOG**: corresponds to Logistic Regression.
--   **STDLIB_ML_SGD_CLASSIFICATION_MODIFIED_HUBER**: Huber loss function variant for classification.
--   **STDLIB_ML_SGD_CLASSIFICATION_PERCEPTRON**: corresponds to the original perceptron by Rosenblatt (1957).
--   **STDLIB_ML_SGD_CLASSIFICATION_SQUARED_EPSILON_INSENSITIVE**: squared epsilon insensitive loss function.
--   **STDLIB_ML_SGD_CLASSIFICATION_SQUARED_ERROR**: squared difference of the observed and fitted values.
--   **STDLIB_ML_SGD_CLASSIFICATION_SQUARED_HINGE**: squared hinge loss function SVM (L2-SVM).
-
-```c
-#include "stdlib/ml/base/sgd-classification/loss_functions.h"
-
-const enum STDLIB_ML_SGD_CLASSIFICATION_LOSS_FUNCTION v = STDLIB_ML_SGD_CLASSIFICATION_HINGE;
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-### Notes
-
--   Enumeration constants should be considered opaque values, and one should **not** rely on specific integer values.
-
-</section>
-
-<!-- /.notes -->
-
-<!-- C API usage examples. -->
-
-<section class="examples">
-
-</section>
-
-<!-- /.examples -->
-
-</section>
-
-<!-- /.c -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/benchmark/benchmark.js
deleted file mode 100644
index fc9b818bd1cd..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/benchmark/benchmark.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isStringArray = require( '@stdlib/assert/is-string-array' ).primitives;
-var pkg = require( './../package.json' ).name;
-var lossFunctions = require( './../lib' );
-
-
-// MAIN //
-
-bench( pkg, function benchmark( b ) {
-	var out;
-	var i;
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = lossFunctions();
-		if ( out.length < 2 ) {
-			b.fail( 'should return an array' );
-		}
-	}
-	b.toc();
-	if ( !isStringArray( out ) ) {
-		b.fail( 'should return an array of strings' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/docs/repl.txt
deleted file mode 100644
index 3ee9a26c327a..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/docs/repl.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-
-{{alias}}()
-    Returns a list of SGD classification loss functions.
-
-    The output array contains the following loss functions:
-
-    - epsilon-insensitive: penalty is the absolute value of the error whenever
-    the absolute error exceeds epsilon and zero otherwise.
-    - hinge: hinge loss function. Corresponds to a soft-margin linear Support
-    Vector Machine (SVM), which can handle non-linearly separable data.
-    - huber: squared-error loss for observations with error smaller than epsilon
-    in magnitude, linear loss otherwise. Should be used in order to decrease the
-    influence of outliers on the model fit.
-    - log: logistic loss function. Corresponds to Logistic Regression.
-    - modified-huber: Huber loss function variant for classification.
-    - perceptron: hinge loss function without a margin. Corresponds to the
-    original perceptron by Rosenblatt (1957).
-    - squared-epsilon-insensitive: squared epsilon insensitive loss function.
-    - squared-error: squared error loss (i.e., the squared difference of the
-    observed and fitted values).
-    - squared-hinge: squared hinge loss function SVM (L2-SVM).
-
-    Returns
-    -------
-    out: Array<string>
-        List of loss functions.
-
-    Examples
-    --------
-    > var out = {{alias}}()
-    [...]
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/docs/types/index.d.ts
deleted file mode 100644
index ffe179e81b20..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/docs/types/index.d.ts
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns a list of SGD classification loss functions.
-*
-* @returns list of loss functions
-*
-* @example
-* var list = lossFunctions();
-* // e.g., returns [ 'epsilon-insensitive', 'hinge', 'huber', 'log', 'modified-huber', 'perceptron', 'squared-epsilon-insensitive', 'squared-error', 'squared-hinge' ]
-*/
-declare function lossFunctions(): Array<string>;
-
-
-// EXPORTS //
-
-export = lossFunctions;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/docs/types/test.ts
deleted file mode 100644
index 6c51642dacaa..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/docs/types/test.ts
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import lossFunctions = require( './index' );
-
-
-// TESTS //
-
-// The function returns an array of strings...
-{
-	lossFunctions(); // $ExpectType string[]
-}
-
-// The compiler throws an error if the function is provided any arguments...
-{
-	lossFunctions( 9 ); // $ExpectError
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/examples/index.js
deleted file mode 100644
index 1fa9e2f61bbf..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/examples/index.js
+++ /dev/null
@@ -1,36 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var contains = require( '@stdlib/array/base/assert/contains' ).factory;
-var lossFunctions = require( './../lib' );
-
-var isLossFunction = contains( lossFunctions() );
-
-var bool = isLossFunction( 'hinge' );
-console.log( bool );
-// => true
-
-bool = isLossFunction( 'log' );
-console.log( bool );
-// => true
-
-bool = isLossFunction( 'beep' );
-console.log( bool );
-// => false
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/include/stdlib/ml/base/sgd-classification/loss_functions.h b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/include/stdlib/ml/base/sgd-classification/loss_functions.h
deleted file mode 100644
index fe1820bcc94f..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/include/stdlib/ml/base/sgd-classification/loss_functions.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-#ifndef STDLIB_ML_BASE_SGD_CLASSIFICATION_LOSS_FUNCTIONS_H
-#define STDLIB_ML_BASE_SGD_CLASSIFICATION_LOSS_FUNCTIONS_H
-
-/**
-* Enumeration of SGD classification loss functions.
-*/
-enum STDLIB_ML_SGD_CLASSIFICATION_LOSS_FUNCTION {
-	// Penalty is the absolute value of the error whenever the absolute error exceeds epsilon and zero otherwise:
-	STDLIB_ML_SGD_CLASSIFICATION_EPSILON_INSENSITIVE = 0,
-
-	// Corresponds to a soft-margin linear Support Vector Machine (SVM), which can handle non-linearly separable data:
-	STDLIB_ML_SGD_CLASSIFICATION_HINGE,
-
-	// Squared-error loss for observations with error smaller than epsilon in magnitude, linear loss otherwise:
-	STDLIB_ML_SGD_CLASSIFICATION_HUBER,
-
-	// Corresponds to Logistic Regression:
-	STDLIB_ML_SGD_CLASSIFICATION_LOG,
-
-	// Huber loss function variant for classification:
-	STDLIB_ML_SGD_CLASSIFICATION_MODIFIED_HUBER,
-
-	// Corresponds to the original perceptron by Rosenblatt (1957):
-	STDLIB_ML_SGD_CLASSIFICATION_PERCEPTRON,
-
-	// Squared epsilon insensitive loss function:
-	STDLIB_ML_SGD_CLASSIFICATION_SQUARED_EPSILON_INSENSITIVE,
-
-	// Squared difference of the observed and fitted values:
-	STDLIB_ML_SGD_CLASSIFICATION_SQUARED_ERROR,
-
-	// Squared hinge loss function SVM (L2-SVM):
-	STDLIB_ML_SGD_CLASSIFICATION_SQUARED_HINGE
-};
-
-#endif // !STDLIB_ML_BASE_SGD_CLASSIFICATION_LOSS_FUNCTIONS_H
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/data.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/data.json
deleted file mode 100644
index 7398567751ce..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/data.json
+++ /dev/null
@@ -1,11 +0,0 @@
-[
-  "epsilon-insensitive",
-  "hinge",
-  "huber",
-  "log",
-  "modified-huber",
-  "perceptron",
-  "squared-epsilon-insensitive",
-  "squared-error",
-  "squared-hinge"
-]
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/enum.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/enum.js
deleted file mode 100644
index c1171c01f482..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/enum.js
+++ /dev/null
@@ -1,72 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MAIN //
-
-/**
-* Returns an object mapping supported loss functions to integer values for purposes of C inter-operation.
-*
-* ## Notes
-*
-* -   Downstream consumers of this mapping should **not** rely on specific integer values (e.g., `HINGE == 0`). Instead, the object should be used in an opaque manner.
-* -   The main purpose of this function is JavaScript and C inter-operation.
-*
-* @returns {Object} object mapping supported loss functions to integer values
-*
-* @example
-* var table = enumerated();
-* // returns <Object>
-*/
-function enumerated() {
-	// NOTE: the following should match the C `loss_functions.h` enumeration!!!!
-	return {
-		// Penalty is the absolute value of the error whenever the absolute error exceeds epsilon and zero otherwise:
-		'epsilon-insensitive': 0,
-
-		// Corresponds to a soft-margin linear Support Vector Machine (SVM), which can handle non-linearly separable data:
-		'hinge': 1,
-
-		// Squared-error loss for observations with error smaller than epsilon in magnitude, linear loss otherwise:
-		'huber': 2,
-
-		// Corresponds to Logistic Regression:
-		'log': 3,
-
-		// Huber loss function variant for classification:
-		'modified-huber': 4,
-
-		// Corresponds to the original perceptron by Rosenblatt (1957):
-		'perceptron': 5,
-
-		// Squared epsilon insensitive loss function:
-		'squared-epsilon-insensitive': 6,
-
-		// Squared difference of the observed and fitted values:
-		'squared-error': 7,
-
-		// Squared hinge loss function SVM (L2-SVM):
-		'squared-hinge': 8
-	};
-}
-
-
-// EXPORTS //
-
-module.exports = enumerated;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/index.js
deleted file mode 100644
index 01f578cb39f1..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/index.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return a list of SGD classification loss functions.
-*
-* @module @stdlib/ml/base/sgd-classification/loss-functions
-*
-* @example
-* var lossFunctions = require( '@stdlib/ml/base/sgd-classification/loss-functions' );
-*
-* var list = lossFunctions();
-* // e.g., returns [ 'epsilon-insensitive', 'hinge', 'huber', 'log', 'modified-huber', 'perceptron', 'squared-epsilon-insensitive', 'squared-error', 'squared-hinge' ]
-*/
-
-// MODULES //
-
-var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
-var main = require( './main.js' );
-var enumeration = require( './enum.js' );
-
-
-// MAIN //
-
-setReadOnly( main, 'enum', enumeration );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/main.js
deleted file mode 100644
index 8b5f84f33291..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/lib/main.js
+++ /dev/null
@@ -1,44 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var DATA = require( './data.json' );
-
-
-// MAIN //
-
-/**
-* Returns a list of SGD classification loss functions.
-*
-* @returns {Array<string>} list of loss functions
-*
-* @example
-* var list = lossFunctions();
-* // e.g., returns [ 'epsilon-insensitive', 'hinge', 'huber', 'log', 'modified-huber', 'perceptron', 'squared-epsilon-insensitive', 'squared-error', 'squared-hinge' ]
-*/
-function lossFunctions() {
-	return DATA.slice();
-}
-
-
-// EXPORTS //
-
-module.exports = lossFunctions;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/manifest.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/manifest.json
deleted file mode 100644
index 844d692f6439..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/manifest.json
+++ /dev/null
@@ -1,36 +0,0 @@
-{
-  "options": {},
-  "fields": [
-    {
-      "field": "src",
-      "resolve": true,
-      "relative": true
-    },
-    {
-      "field": "include",
-      "resolve": true,
-      "relative": true
-    },
-    {
-      "field": "libraries",
-      "resolve": false,
-      "relative": false
-    },
-    {
-      "field": "libpath",
-      "resolve": true,
-      "relative": false
-    }
-  ],
-  "confs": [
-    {
-      "src": [],
-      "include": [
-        "./include"
-      ],
-      "libraries": [],
-      "libpath": [],
-      "dependencies": []
-    }
-  ]
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/package.json
deleted file mode 100644
index 8fb42101d6a1..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/package.json
+++ /dev/null
@@ -1,66 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/loss-functions",
-  "version": "0.0.0",
-  "description": "SGD classification loss functions.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "include": "./include",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "loss functions",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/test/test.js
deleted file mode 100644
index e8572666efbc..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/loss-functions/test/test.js
+++ /dev/null
@@ -1,87 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var hasOwnProp = require( '@stdlib/assert/has-own-property' );
-var isNonNegativeInteger = require( '@stdlib/assert/is-nonnegative-integer' ).isPrimitive;
-var lossFunctions = require( './../lib' );
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof lossFunctions, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns a list of SGD classification loss functions', function test( t ) {
-	var expected;
-	var actual;
-
-	expected = [
-		'epsilon-insensitive',
-		'hinge',
-		'huber',
-		'log',
-		'modified-huber',
-		'perceptron',
-		'squared-epsilon-insensitive',
-		'squared-error',
-		'squared-hinge'
-	];
-	actual = lossFunctions();
-
-	t.deepEqual( actual, expected, 'returns expected value' );
-	t.end();
-});
-
-tape( 'attached to the main function is an `enum` method to return an object mapping loss functions to integer values for C inter-operation', function test( t ) {
-	var obj;
-	var o;
-	var i;
-
-	t.strictEqual( hasOwnProp( lossFunctions, 'enum' ), true, 'has property' );
-	t.strictEqual( typeof lossFunctions.enum, 'function', 'has method' );
-
-	obj = lossFunctions.enum();
-	t.strictEqual( typeof obj, 'object', 'returns expected value' );
-
-	// List of values which should be supported...
-	o = [
-		'epsilon-insensitive',
-		'hinge',
-		'huber',
-		'log',
-		'modified-huber',
-		'perceptron',
-		'squared-epsilon-insensitive',
-		'squared-error',
-		'squared-hinge'
-	];
-	for ( i = 0; i < o.length; i++ ) {
-		t.strictEqual( hasOwnProp( obj, o[ i ] ), true, 'has property `' + o[ i ] + '`' );
-		t.strictEqual( isNonNegativeInteger( obj[ o[ i ] ] ), true, 'returns expected value' );
-	}
-
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/README.md
deleted file mode 100644
index 5d64911473f5..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/README.md
+++ /dev/null
@@ -1,190 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# Penalties
-
-> SGD classification penalties.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var penalties = require( '@stdlib/ml/base/sgd-classification/penalties' );
-```
-
-#### penalties()
-
-Returns a list of SGD classification penalties.
-
-```javascript
-var out = penalties();
-// e.g., returns [ 'elasticnet', 'l1', 'l2', 'none' ]
-```
-
-The output array contains the following penalties:
-
--   `elasticnet`: regularization method that linearly combines the L1 and L2 penalties of the lasso and ridge methods.
--   `l1`: L1 regularization (also called LASSO) leads to sparse models by adding a penalty based on the absolute value of coefficients.
--   `l2`: L2 regularization (also called ridge regression) encourages smaller, more evenly distributed weights by adding a penalty based on the square of the coefficients.
--   `none`: no regularization.
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var contains = require( '@stdlib/array/base/assert/contains' ).factory;
-var penalties = require( '@stdlib/ml/base/sgd-classification/penalties' );
-
-var isPenalty = contains( penalties() );
-
-var bool = isPenalty( 'l1' );
-// returns true
-
-bool = isPenalty( 'l2' );
-// returns true
-
-bool = isPenalty( 'beep' );
-// returns false
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- C interface documentation. -->
-
-* * *
-
-<section class="c">
-
-## C APIs
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- C usage documentation. -->
-
-<section class="usage">
-
-### Usage
-
-```c
-#include "stdlib/ml/base/sgd-classification/penalties.h"
-```
-
-#### STDLIB_ML_SGD_CLASSIFICATION_PENALTY
-
-An enumeration of SGD classification penalties with the following fields:
-
--   **STDLIB_ML_SGD_CLASSIFICATION_ELASTICNET**: regularization method that linearly combines the L1 and L2 penalties of the lasso and ridge methods.
--   **STDLIB_ML_SGD_CLASSIFICATION_L1**: L1 regularization (also called LASSO) leads to sparse models by adding a penalty based on the absolute value of coefficients.
--   **STDLIB_ML_SGD_CLASSIFICATION_L2**: L2 regularization (also called ridge regression) encourages smaller, more evenly distributed weights by adding a penalty based on the square of the coefficients.
--   **STDLIB_ML_SGD_CLASSIFICATION_NONE**: no regularization.
-
-```c
-#include "stdlib/ml/base/sgd-classification/penalties.h"
-
-const enum STDLIB_ML_SGD_CLASSIFICATION_PENALTY v = STDLIB_ML_SGD_CLASSIFICATION_ELASTICNET;
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-### Notes
-
--   Enumeration constants should be considered opaque values, and one should **not** rely on specific integer values.
-
-</section>
-
-<!-- /.notes -->
-
-<!-- C API usage examples. -->
-
-<section class="examples">
-
-</section>
-
-<!-- /.examples -->
-
-</section>
-
-<!-- /.c -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/benchmark/benchmark.js
deleted file mode 100644
index a279d0987452..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/benchmark/benchmark.js
+++ /dev/null
@@ -1,48 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isStringArray = require( '@stdlib/assert/is-string-array' ).primitives;
-var pkg = require( './../package.json' ).name;
-var penalties = require( './../lib' );
-
-
-// MAIN //
-
-bench( pkg, function benchmark( b ) {
-	var out;
-	var i;
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = penalties();
-		if ( out.length < 2 ) {
-			b.fail( 'should return an array' );
-		}
-	}
-	b.toc();
-	if ( !isStringArray( out ) ) {
-		b.fail( 'should return an array of strings' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/docs/repl.txt
deleted file mode 100644
index 6bd0cc9def11..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/docs/repl.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-
-{{alias}}()
-    Returns a list of SGD classification penalties.
-
-    The output array contains the following penalties:
-
-    - elasticnet: regularization method that linearly combines the L1 and L2
-    penalties of the lasso and ridge methods.
-    - l1: L1 regularization (also called LASSO) leads to sparse models by adding
-    a penalty based on the absolute value of coefficients.
-    - l2: L2 regularization (also called ridge regression) encourages smaller,
-    more evenly distributed weights by adding a penalty based on the square of
-    the coefficients.
-    - none: no regularization.
-
-    Returns
-    -------
-    out: Array<string>
-        List of penalties.
-
-    Examples
-    --------
-    > var out = {{alias}}()
-    [...]
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/docs/types/index.d.ts
deleted file mode 100644
index 475e72c0abc9..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/docs/types/index.d.ts
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns a list of SGD classification penalties.
-*
-* @returns list of penalties
-*
-* @example
-* var list = penalties();
-* // e.g., returns [ 'elasticnet', 'l1', 'l2', 'none' ]
-*/
-declare function penalties(): Array<string>;
-
-
-// EXPORTS //
-
-export = penalties;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/docs/types/test.ts
deleted file mode 100644
index c536e7fc758d..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/docs/types/test.ts
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import penalties = require( './index' );
-
-
-// TESTS //
-
-// The function returns an array of strings...
-{
-	penalties(); // $ExpectType string[]
-}
-
-// The compiler throws an error if the function is provided any arguments...
-{
-	penalties( 9 ); // $ExpectError
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/examples/index.js
deleted file mode 100644
index 5d65a24f81e0..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/examples/index.js
+++ /dev/null
@@ -1,36 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var contains = require( '@stdlib/array/base/assert/contains' ).factory;
-var penalties = require( './../lib' );
-
-var isPenalty = contains( penalties() );
-
-var bool = isPenalty( 'elasticnet' );
-console.log( bool );
-// => true
-
-bool = isPenalty( 'l1' );
-console.log( bool );
-// => true
-
-bool = isPenalty( 'beep' );
-console.log( bool );
-// => false
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/include/stdlib/ml/base/sgd-classification/penalties.h b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/include/stdlib/ml/base/sgd-classification/penalties.h
deleted file mode 100644
index 69ffa486e1ad..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/include/stdlib/ml/base/sgd-classification/penalties.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-#ifndef STDLIB_ML_BASE_SGD_CLASSIFICATION_PENALTIES_H
-#define STDLIB_ML_BASE_SGD_CLASSIFICATION_PENALTIES_H
-
-/**
-* Enumeration of SGD classification penalties.
-*/
-enum STDLIB_ML_SGD_CLASSIFICATION_PENALTY {
-	// Regularization method that linearly combines the L1 and L2 penalties of the lasso and ridge methods:
-	STDLIB_ML_SGD_CLASSIFICATION_ELASTICNET = 0,
-
-	// L1 regularization (also called LASSO) leads to sparse models by adding a penalty based on the absolute value of coefficients:
-	STDLIB_ML_SGD_CLASSIFICATION_L1,
-
-	// L2 regularization (also called ridge regression) encourages smaller, more evenly distributed weights by adding a penalty based on the square of the coefficients:
-	STDLIB_ML_SGD_CLASSIFICATION_L2,
-
-	// No regularization:
-	STDLIB_ML_SGD_CLASSIFICATION_NONE
-};
-
-#endif // !STDLIB_ML_BASE_SGD_CLASSIFICATION_PENALTIES_H
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/data.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/data.json
deleted file mode 100644
index 71d176852af9..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/data.json
+++ /dev/null
@@ -1,6 +0,0 @@
-[
-  "elasticnet",
-  "l1",
-  "l2",
-  "none"
-]
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/enum.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/enum.js
deleted file mode 100644
index 834628e0894a..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/enum.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MAIN //
-
-/**
-* Returns an object mapping supported penalties to integer values for purposes of C inter-operation.
-*
-* ## Notes
-*
-* -   Downstream consumers of this mapping should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the object should be used in an opaque manner.
-* -   The main purpose of this function is JavaScript and C inter-operation.
-*
-* @returns {Object} object mapping supported penalties to integer values
-*
-* @example
-* var table = enumerated();
-* // returns <Object>
-*/
-function enumerated() {
-	// NOTE: the following should match the C `penalties.h` enumeration!!!!
-	return {
-		// Regularization method that linearly combines the L1 and L2 penalties of the lasso and ridge methods:
-		'elasticnet': 0,
-
-		// L1 regularization (also called LASSO) leads to sparse models by adding a penalty based on the absolute value of coefficients:
-		'l1': 1,
-
-		// L2 regularization (also called ridge regression) encourages smaller, more evenly distributed weights by adding a penalty based on the square of the coefficients:
-		'l2': 2,
-
-		// No regularization:
-		'none': 3
-	};
-}
-
-
-// EXPORTS //
-
-module.exports = enumerated;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/index.js
deleted file mode 100644
index 0ae898525139..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/index.js
+++ /dev/null
@@ -1,47 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return a list of SGD classification penalties.
-*
-* @module @stdlib/ml/base/sgd-classification/penalties
-*
-* @example
-* var penalties = require( '@stdlib/ml/base/sgd-classification/penalties' );
-*
-* var list = penalties();
-* // e.g., returns [ 'elasticnet', 'l1', 'l2', 'none' ]
-*/
-
-// MODULES //
-
-var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
-var main = require( './main.js' );
-var enumeration = require( './enum.js' );
-
-
-// MAIN //
-
-setReadOnly( main, 'enum', enumeration );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/main.js
deleted file mode 100644
index bd8994668f0a..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/lib/main.js
+++ /dev/null
@@ -1,44 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var DATA = require( './data.json' );
-
-
-// MAIN //
-
-/**
-* Returns a list of SGD classification penalties.
-*
-* @returns {Array<string>} list of penalties
-*
-* @example
-* var list = penalties();
-* // e.g., returns [ 'elasticnet', 'l1', 'l2', 'none' ]
-*/
-function penalties() {
-	return DATA.slice();
-}
-
-
-// EXPORTS //
-
-module.exports = penalties;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/manifest.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/manifest.json
deleted file mode 100644
index 844d692f6439..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/manifest.json
+++ /dev/null
@@ -1,36 +0,0 @@
-{
-  "options": {},
-  "fields": [
-    {
-      "field": "src",
-      "resolve": true,
-      "relative": true
-    },
-    {
-      "field": "include",
-      "resolve": true,
-      "relative": true
-    },
-    {
-      "field": "libraries",
-      "resolve": false,
-      "relative": false
-    },
-    {
-      "field": "libpath",
-      "resolve": true,
-      "relative": false
-    }
-  ],
-  "confs": [
-    {
-      "src": [],
-      "include": [
-        "./include"
-      ],
-      "libraries": [],
-      "libpath": [],
-      "dependencies": []
-    }
-  ]
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/package.json
deleted file mode 100644
index 057f5c45e57b..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/package.json
+++ /dev/null
@@ -1,67 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/penalties",
-  "version": "0.0.0",
-  "description": "SGD classification penalties.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "include": "./include",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd",
-    "classification",
-    "penalties",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/test/test.js
deleted file mode 100644
index c700236e26d2..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalties/test/test.js
+++ /dev/null
@@ -1,77 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var hasOwnProp = require( '@stdlib/assert/has-own-property' );
-var isNonNegativeInteger = require( '@stdlib/assert/is-nonnegative-integer' ).isPrimitive;
-var penalties = require( './../lib' );
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof penalties, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns a list of SGD classification penalties', function test( t ) {
-	var expected;
-	var actual;
-
-	expected = [
-		'elasticnet',
-		'l1',
-		'l2',
-		'none'
-	];
-	actual = penalties();
-
-	t.deepEqual( actual, expected, 'returns expected value' );
-	t.end();
-});
-
-tape( 'attached to the main function is an `enum` method to return an object mapping penalties to integer values for C inter-operation', function test( t ) {
-	var obj;
-	var o;
-	var i;
-
-	t.strictEqual( hasOwnProp( penalties, 'enum' ), true, 'has property' );
-	t.strictEqual( typeof penalties.enum, 'function', 'has method' );
-
-	obj = penalties.enum();
-	t.strictEqual( typeof obj, 'object', 'returns expected value' );
-
-	// List of values which should be supported...
-	o = [
-		'elasticnet',
-		'l1',
-		'l2',
-		'none'
-	];
-	for ( i = 0; i < o.length; i++ ) {
-		t.strictEqual( hasOwnProp( obj, o[ i ] ), true, 'has property `' + o[ i ] + '`' );
-		t.strictEqual( isNonNegativeInteger( obj[ o[ i ] ] ), true, 'returns expected value' );
-	}
-
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/README.md
deleted file mode 100644
index 732205aea8fe..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/README.md
+++ /dev/null
@@ -1,121 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# enum2str
-
-> Return the SGD classification penalty string associated with an SGD classification penalty enumeration constant.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var enum2str = require( '@stdlib/ml/base/sgd-classification/penalty-enum2str' );
-```
-
-#### enum2str( value )
-
-Returns the SGD classification penalty string associated with an SGD classification penalty enumeration constant.
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-
-var v = str2enum( 'elasticnet' );
-// returns <number>
-
-var s = enum2str( v );
-// returns 'elasticnet'
-```
-
-If unable to resolve an SGD classification penalty string, the function returns `null`.
-
-```javascript
-var v = enum2str( -999999999 );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-var enum2str = require( '@stdlib/ml/base/sgd-classification/penalty-enum2str' );
-
-var str = enum2str( str2enum( 'elasticnet' ) );
-// returns 'elasticnet'
-
-str = enum2str( str2enum( 'l1' ) );
-// returns 'l1'
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/benchmark/benchmark.js
deleted file mode 100644
index bd0af6b5522c..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/benchmark/benchmark.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-var pkg = require( './../package.json' ).name;
-var enum2str = require( './../lib' );
-
-
-// MAIN //
-
-bench( pkg, function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		str2enum( 'elasticnet' ),
-		str2enum( 'l1' ),
-		str2enum( 'l2' ),
-		str2enum( 'none' )
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = enum2str( values[ i%values.length ] );
-		if ( typeof out !== 'string' ) {
-			b.fail( 'should return a string' );
-		}
-	}
-	b.toc();
-	if ( !isString( out ) ) {
-		b.fail( 'should return a string' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/docs/repl.txt
deleted file mode 100644
index c9be84e099f4..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/docs/repl.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-
-{{alias}}( value )
-    Returns the SGD classification penalty string associated with an SGD
-    classification penalty enumeration constant.
-
-    Parameters
-    ----------
-    value: integer
-        Penalty enumeration constant.
-
-    Returns
-    -------
-    out: string|null
-        Penalty string.
-
-    Examples
-    --------
-    > var v = 'elasticnet';
-    > v = {{alias:@stdlib/ml/base/sgd-classification/penalty-str2enum}}( v );
-    > var out = {{alias}}( v )
-    'elasticnet'
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/docs/types/index.d.ts
deleted file mode 100644
index 4c5628ed485e..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/docs/types/index.d.ts
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the SGD classification penalty string associated with an SGD classification penalty enumeration constant.
-*
-* @param value - enumeration constant
-* @returns penalty string
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-*
-* var v = str2enum( 'elasticnet' );
-* // returns <number>
-*
-* var s = enum2str( v );
-* // returns 'elasticnet'
-*/
-declare function enum2str( value: number ): string | null;
-
-
-// EXPORTS //
-
-export = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/docs/types/test.ts
deleted file mode 100644
index fe80992105ef..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/docs/types/test.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import enum2str = require( './index' );
-
-
-// TESTS //
-
-// The function returns a string or null...
-{
-	enum2str( 0 ); // $ExpectType string | null
-}
-
-// The compiler throws an error if not provided a number...
-{
-	enum2str( '10' ); // $ExpectError
-	enum2str( true ); // $ExpectError
-	enum2str( false ); // $ExpectError
-	enum2str( null ); // $ExpectError
-	enum2str( undefined ); // $ExpectError
-	enum2str( [] ); // $ExpectError
-	enum2str( {} ); // $ExpectError
-	enum2str( ( x: number ): number => x ); // $ExpectError
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/examples/index.js
deleted file mode 100644
index 3ad88420b4b8..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/examples/index.js
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-var enum2str = require( './../lib' );
-
-var str = enum2str( str2enum( 'l1' ) );
-console.log( str );
-// => 'l1'
-
-str = enum2str( str2enum( 'elasticnet' ) );
-console.log( str );
-// => 'elasticnet'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/lib/index.js
deleted file mode 100644
index e4dd8dcf89ca..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/lib/index.js
+++ /dev/null
@@ -1,44 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the SGD classification penalty string associated with an SGD classification penalty enumeration constant.
-*
-* @module @stdlib/ml/base/sgd-classification/penalty-enum2str
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-* var enum2str = require( '@stdlib/ml/base/sgd-classification/penalty-enum2str' );
-*
-* var v = str2enum( 'elasticnet' );
-* // returns <number>
-*
-* var s = enum2str( v );
-* // returns 'elasticnet'
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/lib/main.js
deleted file mode 100644
index 5f6f90d3b281..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/lib/main.js
+++ /dev/null
@@ -1,60 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
-var objectInverse = require( '@stdlib/object/inverse' );
-var enumeration = require( '@stdlib/ml/base/sgd-classification/penalties' ).enum;
-
-
-// VARIABLES //
-
-var hash = objectInverse( enumeration(), {
-	'duplicates': false
-});
-
-
-// MAIN //
-
-/**
-* Returns the SGD classification penalty string associated with an SGD classification penalty enumeration constant.
-*
-* @param {integer} value - penalty enumeration constant
-* @returns {(string|null)} penalty string or null
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-*
-* var v = str2enum( 'elasticnet' );
-* // returns <number>
-*
-* var s = enum2str( v );
-* // returns 'elasticnet'
-*/
-function enum2str( value ) {
-	var v = hash[ value ];
-	return ( isString( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
-}
-
-
-// EXPORTS //
-
-module.exports = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/package.json
deleted file mode 100644
index d4afa4c09971..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/penalty-enum2str",
-  "version": "0.0.0",
-  "description": "Return the SGD classification penalty string associated with an SGD classification penalty enumeration constant.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "penalty",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/test/test.js
deleted file mode 100644
index f4f58701d115..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-enum2str/test/test.js
+++ /dev/null
@@ -1,67 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-var enum2str = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'elasticnet',
-	'l1',
-	'l2',
-	'none'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof enum2str, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the string associated with an enumeration constant', function test( t ) {
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		-9999999,
-		-999999999,
-		-99999999999
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( enum2str( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/README.md
deleted file mode 100644
index 81a46389812b..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/README.md
+++ /dev/null
@@ -1,124 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# resolve
-
-> Return the enumeration constant associated with a supported SGD classification penalty value.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var resolve = require( '@stdlib/ml/base/sgd-classification/penalty-resolve-enum' );
-```
-
-#### resolve( value )
-
-Returns the enumeration constant associated with a supported SGD classification penalty value.
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-
-var v = resolve( 'elasticnet' );
-// returns <number>
-
-v = resolve( str2enum( 'l1' ) );
-// returns <number>
-```
-
-If unable to resolve an enumeration constant, the function returns `null`.
-
-```javascript
-var v = resolve( 'beep' );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-## Notes
-
--   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var resolve = require( '@stdlib/ml/base/sgd-classification/penalty-resolve-enum' );
-
-var v = resolve( 'elasticnet' );
-// returns <number>
-
-v = resolve( 'l1' );
-// returns <number>
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/benchmark/benchmark.js
deleted file mode 100644
index 92df29536ea2..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/benchmark/benchmark.js
+++ /dev/null
@@ -1,83 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-var format = require( '@stdlib/string/format' );
-var pkg = require( './../package.json' ).name;
-var resolve = require( './../lib' );
-
-
-// MAIN //
-
-bench( format( '%s::string', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		'elasticnet',
-		'l1',
-		'l2'
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'number' ) {
-			b.fail( 'should return a number' );
-		}
-	}
-	b.toc();
-	if ( !isInteger( out ) ) {
-		b.fail( 'should return an integer' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
-
-bench( format( '%s::integer', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		str2enum( 'elasticnet' ),
-		str2enum( 'l1' ),
-		str2enum( 'l2' )
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'number' ) {
-			b.fail( 'should return a number' );
-		}
-	}
-	b.toc();
-	if ( !isInteger( out ) ) {
-		b.fail( 'should return an integer' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/docs/repl.txt
deleted file mode 100644
index 99209f05ff13..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/docs/repl.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-
-{{alias}}( value )
-    Returns the enumeration constant associated with a supported SGD
-    classification penalty value.
-
-    Downstream consumers of this function should *not* rely on specific integer
-    values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an
-    opaque manner.
-
-    Parameters
-    ----------
-    value: any
-        Penalty value.
-
-    Returns
-    -------
-    out: integer|null
-        Enumeration constant.
-
-    Examples
-    --------
-    > var s = 'elasticnet';
-    > var v = {{alias}}( s )
-    <number>
-    > v = {{alias:@stdlib/ml/base/sgd-classification/penalty-str2enum}}( s );
-    > {{alias}}( v )
-    <number>
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/docs/types/index.d.ts
deleted file mode 100644
index 62a12f8eda7b..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/docs/types/index.d.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the enumeration constant associated with a supported SGD classification penalty value.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param value - penalty value
-* @returns enumeration constant
-*
-* @example
-* var v = resolve( 'elasticnet' );
-* // returns <number>
-*/
-declare function resolve( value: any ): number | null;
-
-
-// EXPORTS //
-
-export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/docs/types/test.ts
deleted file mode 100644
index b585b2f1305d..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/docs/types/test.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import resolve = require( './index' );
-
-
-// TESTS //
-
-// The function returns a number or null...
-{
-	resolve( 0 ); // $ExpectType number | null
-	resolve( 'elasticnet' ); // $ExpectType number | null
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/examples/index.js
deleted file mode 100644
index 4d3c6047ef88..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/examples/index.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var resolve = require( './../lib' );
-
-var v = resolve( 'elasticnet' );
-console.log( v );
-// => <number>
-
-v = resolve( 'l1' );
-console.log( v );
-// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/lib/index.js
deleted file mode 100644
index 6d227011f984..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/lib/index.js
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the enumeration constant associated with a supported SGD classification penalty value.
-*
-* @module @stdlib/ml/base/sgd-classification/penalty-resolve-enum
-*
-* @example
-* var resolve = require( '@stdlib/ml/base/sgd-classification/penalty-resolve-enum' );
-*
-* var v = resolve( 'elasticnet' );
-* // returns <number>
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/lib/main.js
deleted file mode 100644
index b888d6f80f80..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/lib/main.js
+++ /dev/null
@@ -1,57 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var enum2str = require( '@stdlib/ml/base/sgd-classification/penalty-enum2str' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-
-
-// MAIN //
-
-/**
-* Returns the enumeration constant associated with a supported SGD classification penalty value.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param {*} value - penalty value
-* @returns {(integer|null)} enumeration constant or null
-*
-* @example
-* var v = resolve( 'elasticnet' );
-* // returns <number>
-*/
-function resolve( value ) {
-	var t = ( typeof value );
-	if ( t === 'number' ) {
-		return ( enum2str( value ) ) ? value : null;
-	}
-	if ( t === 'string' ) {
-		return str2enum( value );
-	}
-	return null;
-}
-
-
-// EXPORTS //
-
-module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/package.json
deleted file mode 100644
index 1a6db6dd1923..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/penalty-resolve-enum",
-  "version": "0.0.0",
-  "description": "Return the enumeration constant associated with a supported SGD classification penalty value.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "penalty",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/test/test.js
deleted file mode 100644
index 358738fdcb8f..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-enum/test/test.js
+++ /dev/null
@@ -1,75 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-var resolve = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'elasticnet',
-	'l1',
-	'l2'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the enumeration constant associated with an SGD classification penalty value', function test( t ) {
-	var v;
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		v = str2enum( VALUES[ i ] );
-		t.strictEqual( resolve( VALUES[ i ] ), v, 'returns expected value' );
-		t.strictEqual( resolve( v ), v, 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		'beep',
-		'boop',
-		'foo',
-		'bar',
-		-99999999,
-		-9999999999,
-		-9999999999999,
-		true,
-		false
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/README.md
deleted file mode 100644
index 014ebca09230..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/README.md
+++ /dev/null
@@ -1,121 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# resolve
-
-> Return the penalty string associated with a supported SGD classification penalty value.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var resolve = require( '@stdlib/ml/base/sgd-classification/penalty-resolve-str' );
-```
-
-#### resolve( value )
-
-Returns the penalty string associated with a supported SGD classification penalty value.
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-
-var v = resolve( 'l1' );
-// returns 'l1'
-
-v = resolve( str2enum( 'l1' ) );
-// returns 'l1'
-```
-
-If unable to resolve an SGD classification penalty string, the function returns `null`.
-
-```javascript
-var v = resolve( 'beep' );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-var resolve = require( '@stdlib/ml/base/sgd-classification/penalty-resolve-str' );
-
-var v = resolve( str2enum( 'l1' ) );
-// returns 'l1'
-
-v = resolve( str2enum( 'elasticnet' ) );
-// returns 'elasticnet'
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/benchmark/benchmark.js
deleted file mode 100644
index ee30432b76eb..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/benchmark/benchmark.js
+++ /dev/null
@@ -1,83 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-var format = require( '@stdlib/string/format' );
-var pkg = require( './../package.json' ).name;
-var resolve = require( './../lib' );
-
-
-// MAIN //
-
-bench( format( '%s::string', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		'elasticnet',
-		'l1',
-		'l2'
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'string' ) {
-			b.fail( 'should return a string' );
-		}
-	}
-	b.toc();
-	if ( !isString( out ) ) {
-		b.fail( 'should return a string' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
-
-bench( format( '%s::integer', pkg ), function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		str2enum( 'elasticnet' ),
-		str2enum( 'l1' ),
-		str2enum( 'l2' )
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = resolve( values[ i%values.length ] );
-		if ( typeof out !== 'string' ) {
-			b.fail( 'should return a string' );
-		}
-	}
-	b.toc();
-	if ( !isString( out ) ) {
-		b.fail( 'should return a string' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/docs/repl.txt
deleted file mode 100644
index 2436af8ed551..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/docs/repl.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-
-{{alias}}( value )
-    Returns the penalty string associated with a supported SGD classification
-    penalty value.
-
-    Parameters
-    ----------
-    value: any
-        Penalty value.
-
-    Returns
-    -------
-    out: string|null
-        Penalty string.
-
-    Examples
-    --------
-    > var v = {{alias}}( 'l1' )
-    'l1'
-    > v = {{alias:@stdlib/ml/base/sgd-classification/penalty-str2enum}}( 'l1' );
-    > out = {{alias}}( v )
-    'l1'
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/docs/types/index.d.ts
deleted file mode 100644
index a15d131a49c5..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/docs/types/index.d.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the penalty string associated with a supported SGD classification penalty value.
-*
-* @param value - penalty value
-* @returns penalty string or null
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-*
-* var v = resolve( str2enum( 'l1' ) );
-* // returns 'l1'
-*/
-declare function resolve( value: any ): string | null;
-
-
-// EXPORTS //
-
-export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/docs/types/test.ts
deleted file mode 100644
index 0c5f41116684..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/docs/types/test.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import resolve = require( './index' );
-
-
-// TESTS //
-
-// The function returns a string or null...
-{
-	resolve( 0 ); // $ExpectType string | null
-	resolve( 'l1' ); // $ExpectType string | null
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/examples/index.js
deleted file mode 100644
index 125e14970b33..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/examples/index.js
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-var resolve = require( './../lib' );
-
-var v = resolve( str2enum( 'l1' ) );
-console.log( v );
-// => 'l1'
-
-v = resolve( str2enum( 'elasticnet' ) );
-console.log( v );
-// => 'elasticnet'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/lib/index.js
deleted file mode 100644
index cddb5dd36ff6..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/lib/index.js
+++ /dev/null
@@ -1,41 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the penalty string associated with a supported SGD classification penalty value.
-*
-* @module @stdlib/ml/base/sgd-classification/penalty-resolve-str
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-* var resolve = require( '@stdlib/ml/base/sgd-classification/penalty-resolve-str' );
-*
-* var v = resolve( str2enum( 'l1' ) );
-* // returns 'l1'
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/lib/main.js
deleted file mode 100644
index 5e8d00c5b266..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/lib/main.js
+++ /dev/null
@@ -1,55 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var enum2str = require( '@stdlib/ml/base/sgd-classification/penalty-enum2str' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-
-
-// MAIN //
-
-/**
-* Returns the penalty string associated with a supported SGD classification penalty value.
-*
-* @param {*} value - penalty value
-* @returns {(string|null)} penalty string or null
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-*
-* var v = resolve( str2enum( 'l1' ) );
-* // returns 'l1'
-*/
-function resolve( value ) {
-	var t = ( typeof value );
-	if ( t === 'string' ) {
-		return ( str2enum( value ) === null ) ? null : value;
-	}
-	if ( t === 'number' ) {
-		return enum2str( value );
-	}
-	return null;
-}
-
-
-// EXPORTS //
-
-module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/package.json
deleted file mode 100644
index e5d78fe7663b..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/penalty-resolve-str",
-  "version": "0.0.0",
-  "description": "Return the penalty string associated with a supported SGD classification penalty value.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "penalty",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/test/test.js
deleted file mode 100644
index 42e271557217..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-resolve-str/test/test.js
+++ /dev/null
@@ -1,75 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-var resolve = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'elasticnet',
-	'l1',
-	'l2'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the string associated with an SGD classification penalty value', function test( t ) {
-	var v;
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		v = str2enum( VALUES[ i ] );
-		t.strictEqual( resolve( VALUES[ i ] ), VALUES[ i ], 'returns expected value' );
-		t.strictEqual( resolve( v ), VALUES[ i ], 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		'beep',
-		'boop',
-		'foo',
-		'bar',
-		-99999999,
-		-9999999999,
-		-9999999999999,
-		true,
-		false
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/README.md
deleted file mode 100644
index c8bcf76adf8e..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/README.md
+++ /dev/null
@@ -1,119 +0,0 @@
-<!--
-
-@license Apache-2.0
-
-Copyright (c) 2026 The Stdlib Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
--->
-
-# str2enum
-
-> Return the enumeration constant associated with an SGD classification penalty string.
-
-<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
-
-<section class="intro">
-
-</section>
-
-<!-- /.intro -->
-
-<!-- Package usage documentation. -->
-
-<section class="usage">
-
-## Usage
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-```
-
-#### str2enum( penalty )
-
-Returns the enumeration constant associated with an SGD classification penalty string.
-
-```javascript
-var v = str2enum( 'l1' );
-// returns <number>
-```
-
-If unable to resolve an enumeration constant, the function returns `null`.
-
-```javascript
-var v = str2enum( 'beep' );
-// returns null
-```
-
-</section>
-
-<!-- /.usage -->
-
-<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="notes">
-
-## Notes
-
--   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
-
-</section>
-
-<!-- /.notes -->
-
-<!-- Package usage examples. -->
-
-<section class="examples">
-
-## Examples
-
-<!-- eslint no-undef: "error" -->
-
-```javascript
-var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-
-var v = str2enum( 'l1' );
-// returns <number>
-
-v = str2enum( 'elasticnet' );
-// returns <number>
-```
-
-</section>
-
-<!-- /.examples -->
-
-<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="references">
-
-</section>
-
-<!-- /.references -->
-
-<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
-
-<section class="related">
-
-</section>
-
-<!-- /.related -->
-
-<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
-
-<section class="links">
-
-</section>
-
-<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/benchmark/benchmark.js
deleted file mode 100644
index d85a6826abf0..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/benchmark/benchmark.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var bench = require( '@stdlib/bench' );
-var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
-var pkg = require( './../package.json' ).name;
-var str2enum = require( './../lib' );
-
-
-// MAIN //
-
-bench( pkg, function benchmark( b ) {
-	var values;
-	var out;
-	var i;
-
-	values = [
-		'elasticnet',
-		'l1',
-		'l2',
-		'none'
-	];
-
-	b.tic();
-	for ( i = 0; i < b.iterations; i++ ) {
-		out = str2enum( values[ i%values.length ] );
-		if ( typeof out !== 'number' ) {
-			b.fail( 'should return a number' );
-		}
-	}
-	b.toc();
-	if ( !isInteger( out ) ) {
-		b.fail( 'should return an integer' );
-	}
-	b.pass( 'benchmark finished' );
-	b.end();
-});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/docs/repl.txt
deleted file mode 100644
index 709357ff73b5..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/docs/repl.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-
-{{alias}}( penalty )
-    Returns the enumeration constant associated with an SGD classification
-    penalty string.
-
-    Downstream consumers of this function should *not* rely on specific integer
-    values (e.g., `ELASTICNET == 0`). Instead, the function should be used in
-    an opaque manner.
-
-    Parameters
-    ----------
-    penalty: string
-        Penalty.
-
-    Returns
-    -------
-    out: integer|null
-        Enumeration constant.
-
-    Examples
-    --------
-    > var out = {{alias}}( 'l1' )
-    <number>
-
-    See Also
-    --------
-
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/docs/types/index.d.ts
deleted file mode 100644
index 5f843b089962..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/docs/types/index.d.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-// TypeScript Version: 4.1
-
-/**
-* Returns the enumeration constant associated with an SGD classification penalty string.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param penalty - penalty string
-* @returns enumeration constant
-*
-* @example
-* var v = str2enum( 'l1' );
-* // returns <number>
-*/
-declare function str2enum( penalty: string ): number | null;
-
-
-// EXPORTS //
-
-export = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/docs/types/test.ts
deleted file mode 100644
index 29e7ee6f3a1a..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/docs/types/test.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-import str2enum = require( './index' );
-
-
-// TESTS //
-
-// The function returns a number or null...
-{
-	str2enum( 'l1' ); // $ExpectType number | null
-}
-
-// The compiler throws an error if not provided a string...
-{
-	str2enum( 10 ); // $ExpectError
-	str2enum( true ); // $ExpectError
-	str2enum( false ); // $ExpectError
-	str2enum( null ); // $ExpectError
-	str2enum( undefined ); // $ExpectError
-	str2enum( [] ); // $ExpectError
-	str2enum( {} ); // $ExpectError
-	str2enum( ( x: number ): number => x ); // $ExpectError
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/examples/index.js
deleted file mode 100644
index faaa6bb8a440..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/examples/index.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-var str2enum = require( './../lib' );
-
-var v = str2enum( 'l1' );
-console.log( v );
-// => <number>
-
-v = str2enum( 'elasticnet' );
-console.log( v );
-// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/lib/index.js
deleted file mode 100644
index d1656208a86c..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/lib/index.js
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-/**
-* Return the enumeration constant associated with an SGD classification penalty string.
-*
-* @module @stdlib/ml/base/sgd-classification/penalty-str2enum
-*
-* @example
-* var str2enum = require( '@stdlib/ml/base/sgd-classification/penalty-str2enum' );
-*
-* var v = str2enum( 'l1' );
-* // returns <number>
-*/
-
-// MODULES //
-
-var main = require( './main.js' );
-
-
-// EXPORTS //
-
-module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/lib/main.js
deleted file mode 100644
index 14f1fc580697..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/lib/main.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
-var enumeration = require( '@stdlib/ml/base/sgd-classification/penalties' ).enum;
-
-
-// VARIABLES //
-
-var ENUM = enumeration();
-
-
-// MAIN //
-
-/**
-* Returns the enumeration constant associated with an SGD classification penalty string.
-*
-* ## Notes
-*
-* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
-*
-* @param {string} penalty - penalty string
-* @returns {(integer|null)} integer value or null
-*
-* @example
-* var v = str2enum( 'l1' );
-* // returns <number>
-*/
-function str2enum( penalty ) {
-	var v = ENUM[ penalty ];
-	return ( isNumber( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
-}
-
-
-// EXPORTS //
-
-module.exports = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/package.json
deleted file mode 100644
index 52cbdcf85632..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@stdlib/ml/base/sgd-classification/penalty-str2enum",
-  "version": "0.0.0",
-  "description": "Return the enumeration constant associated with an SGD classification penalty string.",
-  "license": "Apache-2.0",
-  "author": {
-    "name": "The Stdlib Authors",
-    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-  },
-  "contributors": [
-    {
-      "name": "The Stdlib Authors",
-      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
-    }
-  ],
-  "main": "./lib",
-  "directories": {
-    "benchmark": "./benchmark",
-    "doc": "./docs",
-    "example": "./examples",
-    "lib": "./lib",
-    "test": "./test"
-  },
-  "types": "./docs/types",
-  "scripts": {},
-  "homepage": "https://github.com/stdlib-js/stdlib",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/stdlib-js/stdlib.git"
-  },
-  "bugs": {
-    "url": "https://github.com/stdlib-js/stdlib/issues"
-  },
-  "dependencies": {},
-  "devDependencies": {},
-  "engines": {
-    "node": ">=0.10.0",
-    "npm": ">2.7.0"
-  },
-  "os": [
-    "aix",
-    "darwin",
-    "freebsd",
-    "linux",
-    "macos",
-    "openbsd",
-    "sunos",
-    "win32",
-    "windows"
-  ],
-  "keywords": [
-    "stdlib",
-    "ml",
-    "machine",
-    "learning",
-    "sgd classification",
-    "penalty",
-    "utilities",
-    "utility",
-    "utils",
-    "util",
-    "enum"
-  ],
-  "__stdlib__": {}
-}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/test/test.js
deleted file mode 100644
index b956bb0273b1..000000000000
--- a/lib/node_modules/@stdlib/ml/base/sgd-classification/penalty-str2enum/test/test.js
+++ /dev/null
@@ -1,68 +0,0 @@
-/**
-* @license Apache-2.0
-*
-* Copyright (c) 2026 The Stdlib Authors.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-*    http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-'use strict';
-
-// MODULES //
-
-var tape = require( 'tape' );
-var enum2str = require( '@stdlib/ml/base/sgd-classification/penalty-enum2str' );
-var str2enum = require( './../lib' );
-
-
-// VARIABLES //
-
-var VALUES = [
-	'elasticnet',
-	'l1',
-	'l2',
-	'none'
-];
-
-
-// TESTS //
-
-tape( 'main export is a function', function test( t ) {
-	t.ok( true, __filename );
-	t.strictEqual( typeof str2enum, 'function', 'main export is a function' );
-	t.end();
-});
-
-tape( 'the function returns the enumeration constant associated with a string', function test( t ) {
-	var i;
-	for ( i = 0; i < VALUES.length; i++ ) {
-		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
-	}
-	t.end();
-});
-
-tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
-	var values;
-	var i;
-
-	values = [
-		'beep',
-		'boop',
-		'foo',
-		'bar'
-	];
-	for ( i = 0; i < values.length; i++ ) {
-		t.strictEqual( str2enum( values[ i ] ), null, 'returns expected value' );
-	}
-	t.end();
-});

From 7ba7f2300c31793e1652df52ace371df3d11757b Mon Sep 17 00:00:00 2001
From: nakul-krishnakumar <nakulkrishnakumar86@gmail.com>
Date: Tue, 28 Jul 2026 13:24:37 +0530
Subject: [PATCH 2/3] feat: add `ml/base/sgd`

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown_pkg_readmes
    status: passed
  - task: lint_markdown_docs
    status: na
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    status: na
  - task: lint_package_json
    status: passed
  - task: lint_repl_help
    status: passed
  - task: lint_javascript_src
    status: passed
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: passed
  - task: lint_javascript_tests
    status: passed
  - task: lint_javascript_benchmarks
    status: passed
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: passed
  - task: lint_typescript_tests
    status: passed
  - task: lint_license_headers
    status: passed
---
---
 .../base/sgd/learning-rate-enum2str/README.md | 121 +++++++++++
 .../benchmark/benchmark.js                    |  57 +++++
 .../sgd/learning-rate-enum2str/docs/repl.txt  |  24 +++
 .../docs/types/index.d.ts                     |  41 ++++
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 .../sgd/learning-rate-enum2str/lib/main.js    |  60 ++++++
 .../sgd/learning-rate-enum2str/package.json   |  65 ++++++
 .../sgd/learning-rate-enum2str/test/test.js   |  67 ++++++
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 .../benchmark/benchmark.js                    |  56 +++++
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 .../sgd/learning-rate-str2enum/test/test.js   |  68 ++++++
 .../ml/base/sgd/learning-rates/README.md      | 190 +++++++++++++++++
 .../sgd/learning-rates/benchmark/benchmark.js |  48 +++++
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 .../stdlib/ml/base/sgd/learning_rates.h       |  39 ++++
 .../ml/base/sgd/learning-rates/lib/data.json  |   6 +
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diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/README.md b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/README.md
new file mode 100644
index 000000000000..b6f74898e755
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/README.md
@@ -0,0 +1,121 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# enum2str
+
+> Return the SGD learning rate scheduler string associated with an SGD learning rate scheduler enumeration constant.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var enum2str = require( '@stdlib/ml/base/sgd/learning-rate-enum2str' );
+```
+
+#### enum2str( value )
+
+Returns the SGD learning rate scheduler string associated with an SGD learning rate scheduler enumeration constant.
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+
+var v = str2enum( 'basic' );
+// returns <number>
+
+var s = enum2str( v );
+// returns 'basic'
+```
+
+If unable to resolve an SGD learning rate scheduler string, the function returns `null`.
+
+```javascript
+var v = enum2str( -999999999 );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+var enum2str = require( '@stdlib/ml/base/sgd/learning-rate-enum2str' );
+
+var str = enum2str( str2enum( 'basic' ) );
+// returns 'basic'
+
+str = enum2str( str2enum( 'constant' ) );
+// returns 'constant'
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/benchmark/benchmark.js
new file mode 100644
index 000000000000..1c63048733dd
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/benchmark/benchmark.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+var pkg = require( './../package.json' ).name;
+var enum2str = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		str2enum( 'basic' ),
+		str2enum( 'constant' ),
+		str2enum( 'invscaling' ),
+		str2enum( 'pegasos' )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = enum2str( values[ i%values.length ] );
+		if ( typeof out !== 'string' ) {
+			b.fail( 'should return a string' );
+		}
+	}
+	b.toc();
+	if ( !isString( out ) ) {
+		b.fail( 'should return a string' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/repl.txt
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index 000000000000..98a6ccf480fe
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/repl.txt
@@ -0,0 +1,24 @@
+
+{{alias}}( value )
+    Returns the SGD learning rate scheduler string associated with an SGD
+    learning rate scheduler enumeration constant.
+
+    Parameters
+    ----------
+    value: integer
+        Learning rate scheduler enumeration constant.
+
+    Returns
+    -------
+    out: string|null
+        Learning rate scheduler string.
+
+    Examples
+    --------
+    > var out = {{alias}}(
+    ... {{alias:@stdlib/ml/base/sgd/learning-rate-str2enum}}( 'basic' ) )
+    'basic'
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/types/index.d.ts
new file mode 100644
index 000000000000..e99ce434db9c
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/types/index.d.ts
@@ -0,0 +1,41 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the SGD learning rate scheduler string associated with an SGD learning rate scheduler enumeration constant.
+*
+* @param value - enumeration constant
+* @returns learning rate scheduler string
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+*
+* var v = str2enum( 'basic' );
+* // returns <number>
+*
+* var s = enum2str( v );
+* // returns 'basic'
+*/
+declare function enum2str( value: number ): string | null;
+
+
+// EXPORTS //
+
+export = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/types/test.ts
new file mode 100644
index 000000000000..fe80992105ef
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/types/test.ts
@@ -0,0 +1,39 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import enum2str = require( './index' );
+
+
+// TESTS //
+
+// The function returns a string or null...
+{
+	enum2str( 0 ); // $ExpectType string | null
+}
+
+// The compiler throws an error if not provided a number...
+{
+	enum2str( '10' ); // $ExpectError
+	enum2str( true ); // $ExpectError
+	enum2str( false ); // $ExpectError
+	enum2str( null ); // $ExpectError
+	enum2str( undefined ); // $ExpectError
+	enum2str( [] ); // $ExpectError
+	enum2str( {} ); // $ExpectError
+	enum2str( ( x: number ): number => x ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/examples/index.js
new file mode 100644
index 000000000000..a17c3d2dc6be
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/examples/index.js
@@ -0,0 +1,30 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+var enum2str = require( './../lib' );
+
+var str = enum2str( str2enum( 'constant' ) );
+console.log( str );
+// => 'constant'
+
+str = enum2str( str2enum( 'basic' ) );
+console.log( str );
+// => 'basic'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/lib/index.js
new file mode 100644
index 000000000000..88ba2a87d639
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/lib/index.js
@@ -0,0 +1,44 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the SGD learning rate scheduler string associated with an SGD learning rate scheduler enumeration constant.
+*
+* @module @stdlib/ml/base/sgd/learning-rate-enum2str
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+* var enum2str = require( '@stdlib/ml/base/sgd/learning-rate-enum2str' );
+*
+* var v = str2enum( 'basic' );
+* // returns <number>
+*
+* var s = enum2str( v );
+* // returns 'basic'
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/lib/main.js
new file mode 100644
index 000000000000..effba8d112aa
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/lib/main.js
@@ -0,0 +1,60 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var objectInverse = require( '@stdlib/object/inverse' );
+var enumeration = require( '@stdlib/ml/base/sgd/learning-rates' ).enum;
+
+
+// VARIABLES //
+
+var hash = objectInverse( enumeration(), {
+	'duplicates': false
+});
+
+
+// MAIN //
+
+/**
+* Returns the SGD learning rate scheduler string associated with an SGD learning rate scheduler enumeration constant.
+*
+* @param {integer} value - learning rate scheduler enumeration constant
+* @returns {(string|null)} learning rate scheduler string or null
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+*
+* var v = str2enum( 'basic' );
+* // returns <number>
+*
+* var s = enum2str( v );
+* // returns 'basic'
+*/
+function enum2str( value ) {
+	var v = hash[ value ];
+	return ( isString( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
+}
+
+
+// EXPORTS //
+
+module.exports = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/package.json b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/package.json
new file mode 100644
index 000000000000..c64fee565da7
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/learning-rate-enum2str",
+  "version": "0.0.0",
+  "description": "Return the SGD learning rate scheduler string associated with an SGD learning rate scheduler enumeration constant.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "learning rate",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/test/test.js
new file mode 100644
index 000000000000..d50c7697fca2
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/test/test.js
@@ -0,0 +1,67 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+var enum2str = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'basic',
+	'constant',
+	'invscaling',
+	'pegasos'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof enum2str, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the string associated with an enumeration constant', function test( t ) {
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		-9999999,
+		-999999999,
+		-99999999999
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( enum2str( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/README.md
new file mode 100644
index 000000000000..bdd71cc9162a
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/README.md
@@ -0,0 +1,124 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# resolve
+
+> Return the enumeration constant associated with a supported SGD learning rate scheduler value.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var resolve = require( '@stdlib/ml/base/sgd/learning-rate-resolve-enum' );
+```
+
+#### resolve( value )
+
+Returns the enumeration constant associated with a supported SGD learning rate scheduler value.
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+
+var v = resolve( 'basic' );
+// returns <number>
+
+v = resolve( str2enum( 'constant' ) );
+// returns <number>
+```
+
+If unable to resolve an enumeration constant, the function returns `null`.
+
+```javascript
+var v = resolve( 'beep' );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+## Notes
+
+-   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var resolve = require( '@stdlib/ml/base/sgd/learning-rate-resolve-enum' );
+
+var v = resolve( 'basic' );
+// returns <number>
+
+v = resolve( 'constant' );
+// returns <number>
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/benchmark/benchmark.js
new file mode 100644
index 000000000000..05210e56faaa
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/benchmark/benchmark.js
@@ -0,0 +1,85 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var resolve = require( './../lib' );
+
+
+// MAIN //
+
+bench( format( '%s::string', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'basic',
+		'constant',
+		'invscaling',
+		'pegasos'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'number' ) {
+			b.fail( 'should return a number' );
+		}
+	}
+	b.toc();
+	if ( !isInteger( out ) ) {
+		b.fail( 'should return an integer' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( format( '%s::integer', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		str2enum( 'basic' ),
+		str2enum( 'constant' ),
+		str2enum( 'invscaling' ),
+		str2enum( 'pegasos' )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'number' ) {
+			b.fail( 'should return a number' );
+		}
+	}
+	b.toc();
+	if ( !isInteger( out ) ) {
+		b.fail( 'should return an integer' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/repl.txt
new file mode 100644
index 000000000000..7dedfd9dca49
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/repl.txt
@@ -0,0 +1,30 @@
+
+{{alias}}( value )
+    Returns the enumeration constant associated with a supported SGD learning
+    rate scheduler value.
+
+    Downstream consumers of this function should *not* rely on specific integer
+    values (e.g., `BASIC == 0`). Instead, the function should be used in an
+    opaque manner.
+
+    Parameters
+    ----------
+    value: any
+        Learning rate scheduler value.
+
+    Returns
+    -------
+    out: integer|null
+        Enumeration constant.
+
+    Examples
+    --------
+    > var out = {{alias}}( 'basic' )
+    <number>
+    > out = {{alias}}( {{alias:@stdlib/ml/base/sgd/learning-rate-str2enum}}(
+    ... 'basic' ) )
+    <number>
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/types/index.d.ts
new file mode 100644
index 000000000000..8bafb336ff41
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/types/index.d.ts
@@ -0,0 +1,40 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the enumeration constant associated with a supported SGD learning rate scheduler value.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param value - learning rate scheduler value
+* @returns enumeration constant
+*
+* @example
+* var v = resolve( 'basic' );
+* // returns <number>
+*/
+declare function resolve( value: any ): number | null;
+
+
+// EXPORTS //
+
+export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/types/test.ts
new file mode 100644
index 000000000000..125d9f7a122e
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/types/test.ts
@@ -0,0 +1,28 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import resolve = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number or null...
+{
+	resolve( 0 ); // $ExpectType number | null
+	resolve( 'basic' ); // $ExpectType number | null
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/examples/index.js
new file mode 100644
index 000000000000..8e913704a76b
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/examples/index.js
@@ -0,0 +1,29 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var resolve = require( './../lib' );
+
+var v = resolve( 'basic' );
+console.log( v );
+// => <number>
+
+v = resolve( 'constant' );
+console.log( v );
+// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/lib/index.js
new file mode 100644
index 000000000000..9e4d45439b79
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/lib/index.js
@@ -0,0 +1,40 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the enumeration constant associated with a supported SGD learning rate scheduler value.
+*
+* @module @stdlib/ml/base/sgd/learning-rate-resolve-enum
+*
+* @example
+* var resolve = require( '@stdlib/ml/base/sgd/learning-rate-resolve-enum' );
+*
+* var v = resolve( 'basic' );
+* // returns <number>
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/lib/main.js
new file mode 100644
index 000000000000..464238a9764f
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/lib/main.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var enum2str = require( '@stdlib/ml/base/sgd/learning-rate-enum2str' );
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+
+
+// MAIN //
+
+/**
+* Returns the enumeration constant associated with a supported SGD learning rate scheduler value.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param {*} value - learning rate scheduler value
+* @returns {(integer|null)} enumeration constant or null
+*
+* @example
+* var v = resolve( 'basic' );
+* // returns <number>
+*/
+function resolve( value ) {
+	var t = ( typeof value );
+	if ( t === 'number' ) {
+		return ( enum2str( value ) ) ? value : null;
+	}
+	if ( t === 'string' ) {
+		return str2enum( value );
+	}
+	return null;
+}
+
+
+// EXPORTS //
+
+module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/package.json
new file mode 100644
index 000000000000..09b6da9eb307
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/learning-rate-resolve-enum",
+  "version": "0.0.0",
+  "description": "Return the enumeration constant associated with a supported SGD learning rate scheduler value.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "learning rate",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/test/test.js
new file mode 100644
index 000000000000..ed8293a6f45d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/test/test.js
@@ -0,0 +1,76 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+var resolve = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'basic',
+	'constant',
+	'invscaling',
+	'pegasos'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the enumeration constant associated with an SGD learning rate scheduler value', function test( t ) {
+	var v;
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		v = str2enum( VALUES[ i ] );
+		t.strictEqual( resolve( VALUES[ i ] ), v, 'returns expected value' );
+		t.strictEqual( resolve( v ), v, 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'beep',
+		'boop',
+		'foo',
+		'bar',
+		-99999999,
+		-9999999999,
+		-9999999999999,
+		true,
+		false
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/README.md b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/README.md
new file mode 100644
index 000000000000..e8b505e56edd
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/README.md
@@ -0,0 +1,121 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# resolve
+
+> Return the learning rate scheduler string associated with a supported SGD learning rate scheduler value.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var resolve = require( '@stdlib/ml/base/sgd/learning-rate-resolve-str' );
+```
+
+#### resolve( value )
+
+Returns the learning rate scheduler string associated with a supported SGD learning rate scheduler value.
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+
+var v = resolve( 'constant' );
+// returns 'constant'
+
+v = resolve( str2enum( 'constant' ) );
+// returns 'constant'
+```
+
+If unable to resolve an SGD learning rate scheduler string, the function returns `null`.
+
+```javascript
+var v = resolve( 'beep' );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+var resolve = require( '@stdlib/ml/base/sgd/learning-rate-resolve-str' );
+
+var v = resolve( str2enum( 'constant' ) );
+// returns 'constant'
+
+v = resolve( str2enum( 'basic' ) );
+// returns 'basic'
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/benchmark/benchmark.js
new file mode 100644
index 000000000000..eca6ba815644
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/benchmark/benchmark.js
@@ -0,0 +1,85 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var resolve = require( './../lib' );
+
+
+// MAIN //
+
+bench( format( '%s::string', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'basic',
+		'constant',
+		'invscaling',
+		'pegasos'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'string' ) {
+			b.fail( 'should return a string' );
+		}
+	}
+	b.toc();
+	if ( !isString( out ) ) {
+		b.fail( 'should return a string' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( format( '%s::integer', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		str2enum( 'basic' ),
+		str2enum( 'constant' ),
+		str2enum( 'invscaling' ),
+		str2enum( 'pegasos' )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'string' ) {
+			b.fail( 'should return a string' );
+		}
+	}
+	b.toc();
+	if ( !isString( out ) ) {
+		b.fail( 'should return a string' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/repl.txt
new file mode 100644
index 000000000000..6350c05bc737
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/repl.txt
@@ -0,0 +1,26 @@
+
+{{alias}}( value )
+    Returns the learning rate scheduler string associated with a supported SGD
+    learning rate scheduler value.
+
+    Parameters
+    ----------
+    value: any
+        Learning rate scheduler value.
+
+    Returns
+    -------
+    out: string|null
+        Learning rate scheduler string.
+
+    Examples
+    --------
+    > var out = {{alias}}( 'constant' )
+    'constant'
+    > out = {{alias}}( {{alias:@stdlib/ml/base/sgd/learning-rate-str2enum}}(
+    ... 'constant' ) )
+    'constant'
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/types/index.d.ts
new file mode 100644
index 000000000000..81525ae5ecde
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/types/index.d.ts
@@ -0,0 +1,38 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the learning rate scheduler string associated with a supported SGD learning rate scheduler value.
+*
+* @param value - learning rate scheduler value
+* @returns learning rate scheduler string or null
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+*
+* var v = resolve( str2enum( 'constant' ) );
+* // returns 'constant'
+*/
+declare function resolve( value: any ): string | null;
+
+
+// EXPORTS //
+
+export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/types/test.ts
new file mode 100644
index 000000000000..d122510e714b
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/types/test.ts
@@ -0,0 +1,28 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import resolve = require( './index' );
+
+
+// TESTS //
+
+// The function returns a string or null...
+{
+	resolve( 0 ); // $ExpectType string | null
+	resolve( 'constant' ); // $ExpectType string | null
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/examples/index.js
new file mode 100644
index 000000000000..601cb4491a9b
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/examples/index.js
@@ -0,0 +1,30 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+var resolve = require( './../lib' );
+
+var v = resolve( str2enum( 'constant' ) );
+console.log( v );
+// => 'constant'
+
+v = resolve( str2enum( 'basic' ) );
+console.log( v );
+// => 'basic'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/lib/index.js
new file mode 100644
index 000000000000..1b4684b6e64b
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/lib/index.js
@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the learning rate scheduler string associated with a supported SGD learning rate scheduler value.
+*
+* @module @stdlib/ml/base/sgd/learning-rate-resolve-str
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+* var resolve = require( '@stdlib/ml/base/sgd/learning-rate-resolve-str' );
+*
+* var v = resolve( str2enum( 'constant' ) );
+* // returns 'constant'
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/lib/main.js
new file mode 100644
index 000000000000..192cc1dcc919
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/lib/main.js
@@ -0,0 +1,55 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var enum2str = require( '@stdlib/ml/base/sgd/learning-rate-enum2str' );
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+
+
+// MAIN //
+
+/**
+* Returns the learning rate scheduler string associated with a supported SGD learning rate scheduler value.
+*
+* @param {*} value - learning rate scheduler value
+* @returns {(string|null)} learning rate scheduler string or null
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+*
+* var v = resolve( str2enum( 'constant' ) );
+* // returns 'constant'
+*/
+function resolve( value ) {
+	var t = ( typeof value );
+	if ( t === 'string' ) {
+		return ( str2enum( value ) === null ) ? null : value;
+	}
+	if ( t === 'number' ) {
+		return enum2str( value );
+	}
+	return null;
+}
+
+
+// EXPORTS //
+
+module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/package.json b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/package.json
new file mode 100644
index 000000000000..38296d46fbe6
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/learning-rate-resolve-str",
+  "version": "0.0.0",
+  "description": "Return the learning rate scheduler string associated with a supported SGD learning rate scheduler value.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "learning rate",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/test/test.js
new file mode 100644
index 000000000000..bd51babfa1e7
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/test/test.js
@@ -0,0 +1,76 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+var resolve = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'basic',
+	'constant',
+	'invscaling',
+	'pegasos'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the string associated with an SGD learning rate scheduler value', function test( t ) {
+	var v;
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		v = str2enum( VALUES[ i ] );
+		t.strictEqual( resolve( VALUES[ i ] ), VALUES[ i ], 'returns expected value' );
+		t.strictEqual( resolve( v ), VALUES[ i ], 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'beep',
+		'boop',
+		'foo',
+		'bar',
+		-99999999,
+		-9999999999,
+		-9999999999999,
+		true,
+		false
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/README.md
new file mode 100644
index 000000000000..6f33395cac86
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/README.md
@@ -0,0 +1,119 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# str2enum
+
+> Return the enumeration constant associated with an SGD learning rate scheduler string.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+```
+
+#### str2enum( learningRate )
+
+Returns the enumeration constant associated with an SGD learning rate scheduler string.
+
+```javascript
+var v = str2enum( 'constant' );
+// returns <number>
+```
+
+If unable to resolve an enumeration constant, the function returns `null`.
+
+```javascript
+var v = str2enum( 'beep' );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+## Notes
+
+-   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+
+var v = str2enum( 'constant' );
+// returns <number>
+
+v = str2enum( 'basic' );
+// returns <number>
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/benchmark/benchmark.js
new file mode 100644
index 000000000000..96cb8ab2ee54
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/benchmark/benchmark.js
@@ -0,0 +1,56 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var pkg = require( './../package.json' ).name;
+var str2enum = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'basic',
+		'constant',
+		'invscaling',
+		'pegasos'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = str2enum( values[ i%values.length ] );
+		if ( typeof out !== 'number' ) {
+			b.fail( 'should return a number' );
+		}
+	}
+	b.toc();
+	if ( !isInteger( out ) ) {
+		b.fail( 'should return an integer' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/docs/repl.txt
new file mode 100644
index 000000000000..61a447cfe799
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/docs/repl.txt
@@ -0,0 +1,27 @@
+
+{{alias}}( learningRate )
+    Returns the enumeration constant associated with an SGD learning rate
+    scheduler string.
+
+    Downstream consumers of this function should *not* rely on specific integer
+    values (e.g., `BASIC == 0`). Instead, the function should be used in an
+    opaque manner.
+
+    Parameters
+    ----------
+    learningRate: string
+        Learning rate scheduler.
+
+    Returns
+    -------
+    out: integer|null
+        Enumeration constant.
+
+    Examples
+    --------
+    > var out = {{alias}}( 'constant' )
+    <number>
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/docs/types/index.d.ts
new file mode 100644
index 000000000000..8c59cd76146a
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/docs/types/index.d.ts
@@ -0,0 +1,40 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the enumeration constant associated with an SGD learning rate scheduler string.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param learningRate - learning rate scheduler string
+* @returns enumeration constant
+*
+* @example
+* var v = str2enum( 'constant' );
+* // returns <number>
+*/
+declare function str2enum( learningRate: string ): number | null;
+
+
+// EXPORTS //
+
+export = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/docs/types/test.ts
new file mode 100644
index 000000000000..7d45e990746e
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/docs/types/test.ts
@@ -0,0 +1,39 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import str2enum = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number or null...
+{
+	str2enum( 'constant' ); // $ExpectType number | null
+}
+
+// The compiler throws an error if not provided a string...
+{
+	str2enum( 10 ); // $ExpectError
+	str2enum( true ); // $ExpectError
+	str2enum( false ); // $ExpectError
+	str2enum( null ); // $ExpectError
+	str2enum( undefined ); // $ExpectError
+	str2enum( [] ); // $ExpectError
+	str2enum( {} ); // $ExpectError
+	str2enum( ( x: number ): number => x ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/examples/index.js
new file mode 100644
index 000000000000..69f951ceb6bf
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/examples/index.js
@@ -0,0 +1,29 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var str2enum = require( './../lib' );
+
+var v = str2enum( 'constant' );
+console.log( v );
+// => <number>
+
+v = str2enum( 'basic' );
+console.log( v );
+// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/lib/index.js
new file mode 100644
index 000000000000..435be6f2cd2d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/lib/index.js
@@ -0,0 +1,40 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the enumeration constant associated with an SGD learning rate scheduler string.
+*
+* @module @stdlib/ml/base/sgd/learning-rate-str2enum
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/learning-rate-str2enum' );
+*
+* var v = str2enum( 'constant' );
+* // returns <number>
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/lib/main.js
new file mode 100644
index 000000000000..7adfdad0896f
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/lib/main.js
@@ -0,0 +1,56 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
+var enumeration = require( '@stdlib/ml/base/sgd/learning-rates' ).enum;
+
+
+// VARIABLES //
+
+var ENUM = enumeration();
+
+
+// MAIN //
+
+/**
+* Returns the enumeration constant associated with an SGD learning rate scheduler string.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param {string} learningRate - learning rate scheduler string
+* @returns {(integer|null)} integer value or null
+*
+* @example
+* var v = str2enum( 'constant' );
+* // returns <number>
+*/
+function str2enum( learningRate ) {
+	var v = ENUM[ learningRate ];
+	return ( isNumber( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
+}
+
+
+// EXPORTS //
+
+module.exports = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/package.json
new file mode 100644
index 000000000000..3e3c195e8aeb
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/learning-rate-str2enum",
+  "version": "0.0.0",
+  "description": "Return the enumeration constant associated with an SGD learning rate scheduler string.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "learning rate",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/test/test.js
new file mode 100644
index 000000000000..c71e19ff8b66
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-str2enum/test/test.js
@@ -0,0 +1,68 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var enum2str = require( '@stdlib/ml/base/sgd/learning-rate-enum2str' );
+var str2enum = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'constant',
+	'basic',
+	'invscaling',
+	'pegasos'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof str2enum, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the enumeration constant associated with a string', function test( t ) {
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'beep',
+		'boop',
+		'foo',
+		'bar'
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( str2enum( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/README.md b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/README.md
new file mode 100644
index 000000000000..906c02913af7
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/README.md
@@ -0,0 +1,190 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# Learning rates
+
+> SGD learning rate schedulers.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var learningRates = require( '@stdlib/ml/base/sgd/learning-rates' );
+```
+
+#### learningRates()
+
+Returns a list of SGD learning rate schedulers.
+
+```javascript
+var out = learningRates();
+// e.g., returns [ 'basic', 'constant', 'invscaling', 'pegasos' ]
+```
+
+The output array contains the following learning rate schedulers:
+
+-   `basic`: basic learning rate function according to the formula `10/(10+t)` where `t` is the current iteration.
+-   `constant`: constant learning rate function.
+-   `invscaling`: inverse scaling learning rate function according to the formula `eta0/pow(t, power_t)` where `eta0` is the initial learning rate and `power_t` is the exponent controlling how quickly the learning rate decreases.
+-   `pegasos`: Pegasos learning rate function according to the formula `1/(lambda*t)` where `t` is the current iteration and `lambda` is the regularization parameter.
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var contains = require( '@stdlib/array/base/assert/contains' ).factory;
+var learningRates = require( '@stdlib/ml/base/sgd/learning-rates' );
+
+var isLearningRate = contains( learningRates() );
+
+var bool = isLearningRate( 'constant' );
+// returns true
+
+bool = isLearningRate( 'pegasos' );
+// returns true
+
+bool = isLearningRate( 'beep' );
+// returns false
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+#include "stdlib/ml/base/sgd/learning_rates.h"
+```
+
+#### STDLIB_ML_SGD_LEARNING_RATE
+
+An enumeration of SGD learning rate schedulers with the following fields:
+
+-   **STDLIB_ML_SGD_BASIC**: basic learning rate function according to the formula `10/(10+t)` where `t` is the current iteration.
+-   **STDLIB_ML_SGD_CONSTANT**: constant learning rate function.
+-   **STDLIB_ML_SGD_INVSCALING**: inverse scaling learning rate function according to the formula `eta0/pow(t, power_t)` where `eta0` is the initial learning rate and `power_t` is the exponent controlling how quickly the learning rate decreases.
+-   **STDLIB_ML_SGD_PEGASOS**: Pegasos learning rate function according to the formula `1/(lambda*t)` where `t` is the current iteration and `lambda` is the regularization parameter.
+
+```c
+#include "stdlib/ml/base/sgd/learning_rates.h"
+
+const enum STDLIB_ML_SGD_LEARNING_RATE v = STDLIB_ML_SGD_BASIC;
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+### Notes
+
+-   Enumeration constants should be considered opaque values, and one should **not** rely on specific integer values.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/benchmark/benchmark.js
new file mode 100644
index 000000000000..95c330ebd9fb
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/benchmark/benchmark.js
@@ -0,0 +1,48 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isStringArray = require( '@stdlib/assert/is-string-array' ).primitives;
+var pkg = require( './../package.json' ).name;
+var learningRates = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var out;
+	var i;
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = learningRates();
+		if ( out.length < 2 ) {
+			b.fail( 'should return an array' );
+		}
+	}
+	b.toc();
+	if ( !isStringArray( out ) ) {
+		b.fail( 'should return an array of strings' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/docs/repl.txt
new file mode 100644
index 000000000000..40ebe7fd448b
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/docs/repl.txt
@@ -0,0 +1,30 @@
+
+{{alias}}()
+    Returns a list of SGD learning rate schedulers.
+
+    The output array contains the following learning rate schedulers:
+
+    - basic: basic learning rate function according to the formula `10/(10+t)`
+    where `t` is the current iteration.
+    - constant: constant learning rate function.
+    - invscaling: inverse scaling learning rate function according to the
+    formula `eta0/pow(t, power_t)` where `eta0` is the initial learning rate and
+    `power_t` is the exponent controlling how quickly the learning rate
+    decreases.
+    - pegasos: Pegasos learning rate function according to the formula
+    `1/(lambda*t)` where `t` is the current iteration and `lambda` is the
+    regularization parameter.
+
+    Returns
+    -------
+    out: Array<string>
+        List of learning rate schedulers.
+
+    Examples
+    --------
+    > var out = {{alias}}()
+    [...]
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/docs/types/index.d.ts
new file mode 100644
index 000000000000..40357d3d197f
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/docs/types/index.d.ts
@@ -0,0 +1,35 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns a list of SGD learning rate schedulers.
+*
+* @returns list of learning rate schedulers
+*
+* @example
+* var list = learningRates();
+* // e.g., returns [ 'basic', 'constant', 'invscaling', 'pegasos' ]
+*/
+declare function learningRates(): Array<string>;
+
+
+// EXPORTS //
+
+export = learningRates;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/docs/types/test.ts
new file mode 100644
index 000000000000..c8605c6f84de
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/docs/types/test.ts
@@ -0,0 +1,32 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import learningRates = require( './index' );
+
+
+// TESTS //
+
+// The function returns an array of strings...
+{
+	learningRates(); // $ExpectType string[]
+}
+
+// The compiler throws an error if the function is provided any arguments...
+{
+	learningRates( 9 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/examples/index.js
new file mode 100644
index 000000000000..c7427e0fe2fd
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/examples/index.js
@@ -0,0 +1,36 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var contains = require( '@stdlib/array/base/assert/contains' ).factory;
+var learningRates = require( './../lib' );
+
+var isLearningRate = contains( learningRates() );
+
+var bool = isLearningRate( 'basic' );
+console.log( bool );
+// => true
+
+bool = isLearningRate( 'constant' );
+console.log( bool );
+// => true
+
+bool = isLearningRate( 'beep' );
+console.log( bool );
+// => false
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/include/stdlib/ml/base/sgd/learning_rates.h b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/include/stdlib/ml/base/sgd/learning_rates.h
new file mode 100644
index 000000000000..76eaa63aad41
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/include/stdlib/ml/base/sgd/learning_rates.h
@@ -0,0 +1,39 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#ifndef STDLIB_ML_BASE_SGD_LEARNING_RATES_H
+#define STDLIB_ML_BASE_SGD_LEARNING_RATES_H
+
+/**
+* Enumeration of SGD learning rate schedulers.
+*/
+enum STDLIB_ML_SGD_LEARNING_RATE {
+	// Basic learning rate function according to the formula `10/(10+t)` where `t` is the current iteration:
+	STDLIB_ML_SGD_BASIC = 0,
+
+	// Constant learning rate function:
+	STDLIB_ML_SGD_CONSTANT,
+
+	// Inverse scaling learning rate function according to the formula `eta0/pow(t, power_t)` where `eta0` is the initial learning rate and `power_t` is the exponent controlling how quickly the learning rate decreases:
+	STDLIB_ML_SGD_INVSCALING,
+
+	// Pegasos learning rate function according to the formula `1/(lambda*t)` where `t` is the current iteration and `lambda` is the regularization parameter:
+	STDLIB_ML_SGD_PEGASOS
+};
+
+#endif // !STDLIB_ML_BASE_SGD_LEARNING_RATES_H
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/data.json b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/data.json
new file mode 100644
index 000000000000..9f4424ed10e9
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/data.json
@@ -0,0 +1,6 @@
+[
+  "basic",
+  "constant",
+  "invscaling",
+  "pegasos"
+]
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/enum.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/enum.js
new file mode 100644
index 000000000000..27c8b2643a09
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/enum.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MAIN //
+
+/**
+* Returns an object mapping supported learning rate schedulers to integer values for purposes of C inter-operation.
+*
+* ## Notes
+*
+* -   Downstream consumers of this mapping should **not** rely on specific integer values (e.g., `BASIC == 0`). Instead, the object should be used in an opaque manner.
+* -   The main purpose of this function is JavaScript and C inter-operation.
+*
+* @returns {Object} object mapping supported learning rate schedulers to integer values
+*
+* @example
+* var table = enumerated();
+* // returns <Object>
+*/
+function enumerated() {
+	// NOTE: the following should match the C `learning rates.h` enumeration!!!!
+	return {
+		// Basic learning rate function according to the formula `10/(10+t)` where `t` is the current iteration:
+		'basic': 0,
+
+		// Constant learning rate function:
+		'constant': 1,
+
+		// Inverse scaling learning rate function according to the formula `eta0/pow(t, power_t)` where `eta0` is the initial learning rate and `power_t` is the exponent controlling how quickly the learning rate decreases:
+		'invscaling': 2,
+
+		// Pegasos learning rate function according to the formula `1/(lambda*t)` where `t` is the current iteration and `lambda` is the regularization parameter:
+		'pegasos': 3
+	};
+}
+
+
+// EXPORTS //
+
+module.exports = enumerated;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/index.js
new file mode 100644
index 000000000000..2df50d20e3f7
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/index.js
@@ -0,0 +1,47 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return a list of SGD learning rate schedulers.
+*
+* @module @stdlib/ml/base/sgd/learning-rates
+*
+* @example
+* var learningRates = require( '@stdlib/ml/base/sgd/learning-rates' );
+*
+* var list = learningRates();
+* // e.g., returns [ 'basic', 'constant', 'invscaling', 'pegasos' ]
+*/
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var main = require( './main.js' );
+var enumeration = require( './enum.js' );
+
+
+// MAIN //
+
+setReadOnly( main, 'enum', enumeration );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/main.js
new file mode 100644
index 000000000000..7ceccd893820
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/lib/main.js
@@ -0,0 +1,44 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var DATA = require( './data.json' );
+
+
+// MAIN //
+
+/**
+* Returns a list of SGD learning rate schedulers.
+*
+* @returns {Array<string>} list of learning rate schedulers
+*
+* @example
+* var list = learningRates();
+* // e.g., returns [ 'basic', 'constant', 'invscaling', 'pegasos' ]
+*/
+function learningRates() {
+	return DATA.slice();
+}
+
+
+// EXPORTS //
+
+module.exports = learningRates;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/manifest.json b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/manifest.json
new file mode 100644
index 000000000000..844d692f6439
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/manifest.json
@@ -0,0 +1,36 @@
+{
+  "options": {},
+  "fields": [
+    {
+      "field": "src",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "include",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "libraries",
+      "resolve": false,
+      "relative": false
+    },
+    {
+      "field": "libpath",
+      "resolve": true,
+      "relative": false
+    }
+  ],
+  "confs": [
+    {
+      "src": [],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": []
+    }
+  ]
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/package.json b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/package.json
new file mode 100644
index 000000000000..bfe74db89474
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/package.json
@@ -0,0 +1,67 @@
+{
+  "name": "@stdlib/ml/base/sgd/learning-rates",
+  "version": "0.0.0",
+  "description": "SGD learning rate schedulers.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "include": "./include",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "learning rates",
+    "learning rate schedulers",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/test/test.js
new file mode 100644
index 000000000000..674f7f2a01e8
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rates/test/test.js
@@ -0,0 +1,77 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var hasOwnProp = require( '@stdlib/assert/has-own-property' );
+var isNonNegativeInteger = require( '@stdlib/assert/is-nonnegative-integer' ).isPrimitive;
+var learningRates = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof learningRates, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns a list of SGD learning rate schedulers', function test( t ) {
+	var expected;
+	var actual;
+
+	expected = [
+		'basic',
+		'constant',
+		'invscaling',
+		'pegasos'
+	];
+	actual = learningRates();
+
+	t.deepEqual( actual, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'attached to the main function is an `enum` method to return an object mapping learning rate schedulers to integer values for C inter-operation', function test( t ) {
+	var obj;
+	var o;
+	var i;
+
+	t.strictEqual( hasOwnProp( learningRates, 'enum' ), true, 'has property' );
+	t.strictEqual( typeof learningRates.enum, 'function', 'has method' );
+
+	obj = learningRates.enum();
+	t.strictEqual( typeof obj, 'object', 'returns expected value' );
+
+	// List of values which should be supported...
+	o = [
+		'basic',
+		'constant',
+		'invscaling',
+		'pegasos'
+	];
+	for ( i = 0; i < o.length; i++ ) {
+		t.strictEqual( hasOwnProp( obj, o[ i ] ), true, 'has property `' + o[ i ] + '`' );
+		t.strictEqual( isNonNegativeInteger( obj[ o[ i ] ] ), true, 'returns expected value' );
+	}
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/README.md b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/README.md
new file mode 100644
index 000000000000..56759f577d3c
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/README.md
@@ -0,0 +1,121 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# enum2str
+
+> Return the SGD loss function string associated with an SGD loss function enumeration constant.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var enum2str = require( '@stdlib/ml/base/sgd/loss-function-enum2str' );
+```
+
+#### enum2str( value )
+
+Returns the SGD loss function string associated with an SGD loss function enumeration constant.
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+
+var v = str2enum( 'epsilon-insensitive' );
+// returns <number>
+
+var s = enum2str( v );
+// returns 'epsilon-insensitive'
+```
+
+If unable to resolve an SGD loss function string, the function returns `null`.
+
+```javascript
+var v = enum2str( -999999999 );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+var enum2str = require( '@stdlib/ml/base/sgd/loss-function-enum2str' );
+
+var str = enum2str( str2enum( 'epsilon-insensitive' ) );
+// returns 'epsilon-insensitive'
+
+str = enum2str( str2enum( 'hinge' ) );
+// returns 'hinge'
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/benchmark/benchmark.js
new file mode 100644
index 000000000000..9a74f1f2a1c3
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/benchmark/benchmark.js
@@ -0,0 +1,62 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+var pkg = require( './../package.json' ).name;
+var enum2str = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		str2enum( 'epsilon-insensitive' ),
+		str2enum( 'hinge' ),
+		str2enum( 'huber' ),
+		str2enum( 'log' ),
+		str2enum( 'modified-huber' ),
+		str2enum( 'perceptron' ),
+		str2enum( 'squared-epsilon-insensitive' ),
+		str2enum( 'squared-error' ),
+		str2enum( 'squared-hinge' )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = enum2str( values[ i%values.length ] );
+		if ( typeof out !== 'string' ) {
+			b.fail( 'should return a string' );
+		}
+	}
+	b.toc();
+	if ( !isString( out ) ) {
+		b.fail( 'should return a string' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/repl.txt
new file mode 100644
index 000000000000..2a18d50b834d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/repl.txt
@@ -0,0 +1,25 @@
+
+{{alias}}( value )
+    Returns the SGD loss function string associated with an SGD loss function
+    enumeration constant.
+
+    Parameters
+    ----------
+    value: integer
+        Loss function enumeration constant.
+
+    Returns
+    -------
+    out: string|null
+        Loss function string.
+
+    Examples
+    --------
+    > var out = {{alias}}(
+    ... {{alias:@stdlib/ml/base/sgd/loss-function-str2enum}}(
+    ... 'epsilon-insensitive' ) )
+    'epsilon-insensitive'
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/types/index.d.ts
new file mode 100644
index 000000000000..56e51bc0877e
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/types/index.d.ts
@@ -0,0 +1,41 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the SGD loss function string associated with an SGD loss function enumeration constant.
+*
+* @param value - enumeration constant
+* @returns loss function string
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+*
+* var v = str2enum( 'epsilon-insensitive' );
+* // returns <number>
+*
+* var s = enum2str( v );
+* // returns 'epsilon-insensitive'
+*/
+declare function enum2str( value: number ): string | null;
+
+
+// EXPORTS //
+
+export = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/types/test.ts
new file mode 100644
index 000000000000..fe80992105ef
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/types/test.ts
@@ -0,0 +1,39 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import enum2str = require( './index' );
+
+
+// TESTS //
+
+// The function returns a string or null...
+{
+	enum2str( 0 ); // $ExpectType string | null
+}
+
+// The compiler throws an error if not provided a number...
+{
+	enum2str( '10' ); // $ExpectError
+	enum2str( true ); // $ExpectError
+	enum2str( false ); // $ExpectError
+	enum2str( null ); // $ExpectError
+	enum2str( undefined ); // $ExpectError
+	enum2str( [] ); // $ExpectError
+	enum2str( {} ); // $ExpectError
+	enum2str( ( x: number ): number => x ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/examples/index.js
new file mode 100644
index 000000000000..d2b28c76ff04
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/examples/index.js
@@ -0,0 +1,30 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+var enum2str = require( './../lib' );
+
+var str = enum2str( str2enum( 'hinge' ) );
+console.log( str );
+// => 'hinge'
+
+str = enum2str( str2enum( 'epsilon-insensitive' ) );
+console.log( str );
+// => 'epsilon-insensitive'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/lib/index.js
new file mode 100644
index 000000000000..ab1982084a63
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/lib/index.js
@@ -0,0 +1,44 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the SGD loss function string associated with an SGD loss function enumeration constant.
+*
+* @module @stdlib/ml/base/sgd/loss-function-enum2str
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+* var enum2str = require( '@stdlib/ml/base/sgd/loss-function-enum2str' );
+*
+* var v = str2enum( 'epsilon-insensitive' );
+* // returns <number>
+*
+* var s = enum2str( v );
+* // returns 'epsilon-insensitive'
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/lib/main.js
new file mode 100644
index 000000000000..70b656f17018
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/lib/main.js
@@ -0,0 +1,60 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var objectInverse = require( '@stdlib/object/inverse' );
+var enumeration = require( '@stdlib/ml/base/sgd/loss-functions' ).enum;
+
+
+// VARIABLES //
+
+var hash = objectInverse( enumeration(), {
+	'duplicates': false
+});
+
+
+// MAIN //
+
+/**
+* Returns the SGD loss function string associated with an SGD loss function enumeration constant.
+*
+* @param {integer} value - loss function enumeration constant
+* @returns {(string|null)} loss function string or null
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+*
+* var v = str2enum( 'epsilon-insensitive' );
+* // returns <number>
+*
+* var s = enum2str( v );
+* // returns 'epsilon-insensitive'
+*/
+function enum2str( value ) {
+	var v = hash[ value ];
+	return ( isString( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
+}
+
+
+// EXPORTS //
+
+module.exports = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/package.json b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/package.json
new file mode 100644
index 000000000000..7801ea8df74b
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/loss-function-enum2str",
+  "version": "0.0.0",
+  "description": "Return the SGD loss function string associated with an SGD loss function enumeration constant.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "loss function",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/test/test.js
new file mode 100644
index 000000000000..0d71cb09e064
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/test/test.js
@@ -0,0 +1,72 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+var enum2str = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'epsilon-insensitive',
+	'hinge',
+	'huber',
+	'log',
+	'modified-huber',
+	'perceptron',
+	'squared-epsilon-insensitive',
+	'squared-error',
+	'squared-hinge'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof enum2str, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the string associated with an enumeration constant', function test( t ) {
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		-9999999,
+		-999999999,
+		-99999999999
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( enum2str( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/README.md
new file mode 100644
index 000000000000..12b931992408
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/README.md
@@ -0,0 +1,124 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# resolve
+
+> Return the enumeration constant associated with a supported SGD loss function value.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var resolve = require( '@stdlib/ml/base/sgd/loss-function-resolve-enum' );
+```
+
+#### resolve( value )
+
+Returns the enumeration constant associated with a supported SGD loss function value.
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+
+var v = resolve( 'epsilon-insensitive' );
+// returns <number>
+
+v = resolve( str2enum( 'hinge' ) );
+// returns <number>
+```
+
+If unable to resolve an enumeration constant, the function returns `null`.
+
+```javascript
+var v = resolve( 'beep' );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+## Notes
+
+-   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var resolve = require( '@stdlib/ml/base/sgd/loss-function-resolve-enum' );
+
+var v = resolve( 'epsilon-insensitive' );
+// returns <number>
+
+v = resolve( 'hinge' );
+// returns <number>
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/benchmark/benchmark.js
new file mode 100644
index 000000000000..3ff8ea81efa0
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/benchmark/benchmark.js
@@ -0,0 +1,95 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var resolve = require( './../lib' );
+
+
+// MAIN //
+
+bench( format( '%s::string', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'epsilon-insensitive',
+		'hinge',
+		'huber',
+		'log',
+		'modified-huber',
+		'perceptron',
+		'squared-epsilon-insensitive',
+		'squared-error',
+		'squared-hinge'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'number' ) {
+			b.fail( 'should return a number' );
+		}
+	}
+	b.toc();
+	if ( !isInteger( out ) ) {
+		b.fail( 'should return an integer' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( format( '%s::integer', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		str2enum( 'epsilon-insensitive' ),
+		str2enum( 'hinge' ),
+		str2enum( 'huber' ),
+		str2enum( 'log' ),
+		str2enum( 'modified-huber' ),
+		str2enum( 'perceptron' ),
+		str2enum( 'squared-epsilon-insensitive' ),
+		str2enum( 'squared-error' ),
+		str2enum( 'squared-hinge' )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'number' ) {
+			b.fail( 'should return a number' );
+		}
+	}
+	b.toc();
+	if ( !isInteger( out ) ) {
+		b.fail( 'should return an integer' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/repl.txt
new file mode 100644
index 000000000000..8b3e588d247d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/repl.txt
@@ -0,0 +1,31 @@
+
+{{alias}}( value )
+    Returns the enumeration constant associated with a supported SGD loss
+    function value.
+
+    Downstream consumers of this function should *not* rely on specific integer
+    values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be
+    used in an opaque manner.
+
+    Parameters
+    ----------
+    value: any
+        Loss function value.
+
+    Returns
+    -------
+    out: integer|null
+        Enumeration constant.
+
+    Examples
+    --------
+    > var out = {{alias}}( 'epsilon-insensitive' )
+    <number>
+    > out = {{alias}}(
+    ... {{alias:@stdlib/ml/base/sgd/loss-function-str2enum}}(
+    ... 'epsilon-insensitive' ) )
+    <number>
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/types/index.d.ts
new file mode 100644
index 000000000000..1531f2b58a4f
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/types/index.d.ts
@@ -0,0 +1,40 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the enumeration constant associated with a supported SGD loss function value.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param value - loss function value
+* @returns enumeration constant
+*
+* @example
+* var v = resolve( 'epsilon-insensitive' );
+* // returns <number>
+*/
+declare function resolve( value: any ): number | null;
+
+
+// EXPORTS //
+
+export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/types/test.ts
new file mode 100644
index 000000000000..eab6893aab19
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/types/test.ts
@@ -0,0 +1,28 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import resolve = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number or null...
+{
+	resolve( 0 ); // $ExpectType number | null
+	resolve( 'epsilon-insensitive' ); // $ExpectType number | null
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/examples/index.js
new file mode 100644
index 000000000000..0d237af217d2
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/examples/index.js
@@ -0,0 +1,29 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var resolve = require( './../lib' );
+
+var v = resolve( 'epsilon-insensitive' );
+console.log( v );
+// => <number>
+
+v = resolve( 'hinge' );
+console.log( v );
+// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/lib/index.js
new file mode 100644
index 000000000000..7cc088f69b3d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/lib/index.js
@@ -0,0 +1,40 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the enumeration constant associated with a supported SGD loss function value.
+*
+* @module @stdlib/ml/base/sgd/loss-function-resolve-enum
+*
+* @example
+* var resolve = require( '@stdlib/ml/base/sgd/loss-function-resolve-enum' );
+*
+* var v = resolve( 'epsilon-insensitive' );
+* // returns <number>
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/lib/main.js
new file mode 100644
index 000000000000..bf941935c82c
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/lib/main.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var enum2str = require( '@stdlib/ml/base/sgd/loss-function-enum2str' );
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+
+
+// MAIN //
+
+/**
+* Returns the enumeration constant associated with a supported SGD loss function value.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param {*} value - loss function value
+* @returns {(integer|null)} enumeration constant or null
+*
+* @example
+* var v = resolve( 'epsilon-insensitive' );
+* // returns <number>
+*/
+function resolve( value ) {
+	var t = ( typeof value );
+	if ( t === 'number' ) {
+		return ( enum2str( value ) ) ? value : null;
+	}
+	if ( t === 'string' ) {
+		return str2enum( value );
+	}
+	return null;
+}
+
+
+// EXPORTS //
+
+module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/package.json
new file mode 100644
index 000000000000..01d4aefc29a1
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/loss-function-resolve-enum",
+  "version": "0.0.0",
+  "description": "Return the enumeration constant associated with a supported SGD loss function value.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "loss function",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/test/test.js
new file mode 100644
index 000000000000..bf1034339cf7
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/test/test.js
@@ -0,0 +1,81 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+var resolve = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'epsilon-insensitive',
+	'hinge',
+	'huber',
+	'log',
+	'modified-huber',
+	'perceptron',
+	'squared-epsilon-insensitive',
+	'squared-error',
+	'squared-hinge'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the enumeration constant associated with an SGD loss function value', function test( t ) {
+	var v;
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		v = str2enum( VALUES[ i ] );
+		t.strictEqual( resolve( VALUES[ i ] ), v, 'returns expected value' );
+		t.strictEqual( resolve( v ), v, 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'beep',
+		'boop',
+		'foo',
+		'bar',
+		-99999999,
+		-9999999999,
+		-9999999999999,
+		true,
+		false
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/README.md b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/README.md
new file mode 100644
index 000000000000..642ce9b6e183
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/README.md
@@ -0,0 +1,121 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# resolve
+
+> Return the loss function string associated with a supported SGD loss function value.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var resolve = require( '@stdlib/ml/base/sgd/loss-function-resolve-str' );
+```
+
+#### resolve( value )
+
+Returns the loss function string associated with a supported SGD loss function value.
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+
+var v = resolve( 'hinge' );
+// returns 'hinge'
+
+v = resolve( str2enum( 'hinge' ) );
+// returns 'hinge'
+```
+
+If unable to resolve an SGD loss function string, the function returns `null`.
+
+```javascript
+var v = resolve( 'beep' );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+var resolve = require( '@stdlib/ml/base/sgd/loss-function-resolve-str' );
+
+var v = resolve( str2enum( 'hinge' ) );
+// returns 'hinge'
+
+v = resolve( str2enum( 'epsilon-insensitive' ) );
+// returns 'epsilon-insensitive'
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/benchmark/benchmark.js
new file mode 100644
index 000000000000..bdcd9cfa1556
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/benchmark/benchmark.js
@@ -0,0 +1,95 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var resolve = require( './../lib' );
+
+
+// MAIN //
+
+bench( format( '%s::string', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'epsilon-insensitive',
+		'hinge',
+		'huber',
+		'log',
+		'modified-huber',
+		'perceptron',
+		'squared-epsilon-insensitive',
+		'squared-error',
+		'squared-hinge'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'string' ) {
+			b.fail( 'should return a string' );
+		}
+	}
+	b.toc();
+	if ( !isString( out ) ) {
+		b.fail( 'should return a string' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( format( '%s::integer', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		str2enum( 'epsilon-insensitive' ),
+		str2enum( 'hinge' ),
+		str2enum( 'huber' ),
+		str2enum( 'log' ),
+		str2enum( 'modified-huber' ),
+		str2enum( 'perceptron' ),
+		str2enum( 'squared-epsilon-insensitive' ),
+		str2enum( 'squared-error' ),
+		str2enum( 'squared-hinge' )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'string' ) {
+			b.fail( 'should return a string' );
+		}
+	}
+	b.toc();
+	if ( !isString( out ) ) {
+		b.fail( 'should return a string' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/repl.txt
new file mode 100644
index 000000000000..d779dc625997
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/repl.txt
@@ -0,0 +1,26 @@
+
+{{alias}}( value )
+    Returns the loss function string associated with a supported SGD loss
+    function value.
+
+    Parameters
+    ----------
+    value: any
+        Loss function value.
+
+    Returns
+    -------
+    out: string|null
+        Loss function string.
+
+    Examples
+    --------
+    > var out = {{alias}}( 'hinge' )
+    'hinge'
+    > out = {{alias}}( {{alias:@stdlib/ml/base/sgd/loss-function-str2enum}}(
+    ... 'hinge' ) )
+    'hinge'
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/types/index.d.ts
new file mode 100644
index 000000000000..0129537036b7
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/types/index.d.ts
@@ -0,0 +1,38 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the loss function string associated with a supported SGD loss function value.
+*
+* @param value - loss function value
+* @returns loss function string or null
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+*
+* var v = resolve( str2enum( 'hinge' ) );
+* // returns 'hinge'
+*/
+declare function resolve( value: any ): string | null;
+
+
+// EXPORTS //
+
+export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/types/test.ts
new file mode 100644
index 000000000000..524dc352b685
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/types/test.ts
@@ -0,0 +1,28 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import resolve = require( './index' );
+
+
+// TESTS //
+
+// The function returns a string or null...
+{
+	resolve( 0 ); // $ExpectType string | null
+	resolve( 'hinge' ); // $ExpectType string | null
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/examples/index.js
new file mode 100644
index 000000000000..3b9f6f5ff5e4
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/examples/index.js
@@ -0,0 +1,30 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+var resolve = require( './../lib' );
+
+var v = resolve( str2enum( 'hinge' ) );
+console.log( v );
+// => 'hinge'
+
+v = resolve( str2enum( 'epsilon-insensitive' ) );
+console.log( v );
+// => 'epsilon-insensitive'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/lib/index.js
new file mode 100644
index 000000000000..6071713bfe72
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/lib/index.js
@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the loss function string associated with a supported SGD loss function value.
+*
+* @module @stdlib/ml/base/sgd/loss-function-resolve-str
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+* var resolve = require( '@stdlib/ml/base/sgd/loss-function-resolve-str' );
+*
+* var v = resolve( str2enum( 'hinge' ) );
+* // returns 'hinge'
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/lib/main.js
new file mode 100644
index 000000000000..b7d7fc525128
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/lib/main.js
@@ -0,0 +1,55 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var enum2str = require( '@stdlib/ml/base/sgd/loss-function-enum2str' );
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+
+
+// MAIN //
+
+/**
+* Returns the loss function string associated with a supported SGD loss function value.
+*
+* @param {*} value - loss function value
+* @returns {(string|null)} loss function string or null
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+*
+* var v = resolve( str2enum( 'hinge' ) );
+* // returns 'hinge'
+*/
+function resolve( value ) {
+	var t = ( typeof value );
+	if ( t === 'string' ) {
+		return ( str2enum( value ) === null ) ? null : value;
+	}
+	if ( t === 'number' ) {
+		return enum2str( value );
+	}
+	return null;
+}
+
+
+// EXPORTS //
+
+module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/package.json b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/package.json
new file mode 100644
index 000000000000..e9dda477bb2d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/loss-function-resolve-str",
+  "version": "0.0.0",
+  "description": "Return the loss function string associated with a supported SGD loss function value.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "loss function",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/test/test.js
new file mode 100644
index 000000000000..bedc14cc8cca
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/test/test.js
@@ -0,0 +1,81 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+var resolve = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'epsilon-insensitive',
+	'hinge',
+	'huber',
+	'log',
+	'modified-huber',
+	'perceptron',
+	'squared-epsilon-insensitive',
+	'squared-error',
+	'squared-hinge'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the string associated with an SGD loss function value', function test( t ) {
+	var v;
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		v = str2enum( VALUES[ i ] );
+		t.strictEqual( resolve( VALUES[ i ] ), VALUES[ i ], 'returns expected value' );
+		t.strictEqual( resolve( v ), VALUES[ i ], 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'beep',
+		'boop',
+		'foo',
+		'bar',
+		-99999999,
+		-9999999999,
+		-9999999999999,
+		true,
+		false
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/README.md
new file mode 100644
index 000000000000..11264a16214f
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/README.md
@@ -0,0 +1,119 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# str2enum
+
+> Return the enumeration constant associated with an SGD loss function string.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+```
+
+#### str2enum( lossFunction )
+
+Returns the enumeration constant associated with an SGD loss function string.
+
+```javascript
+var v = str2enum( 'hinge' );
+// returns <number>
+```
+
+If unable to resolve an enumeration constant, the function returns `null`.
+
+```javascript
+var v = str2enum( 'beep' );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+## Notes
+
+-   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+
+var v = str2enum( 'hinge' );
+// returns <number>
+
+v = str2enum( 'epsilon-insensitive' );
+// returns <number>
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/benchmark/benchmark.js
new file mode 100644
index 000000000000..250a871eefda
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/benchmark/benchmark.js
@@ -0,0 +1,61 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var pkg = require( './../package.json' ).name;
+var str2enum = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'epsilon-insensitive',
+		'hinge',
+		'huber',
+		'log',
+		'modified-huber',
+		'perceptron',
+		'squared-epsilon-insensitive',
+		'squared-error',
+		'squared-hinge'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = str2enum( values[ i%values.length ] );
+		if ( typeof out !== 'number' ) {
+			b.fail( 'should return a number' );
+		}
+	}
+	b.toc();
+	if ( !isInteger( out ) ) {
+		b.fail( 'should return an integer' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/docs/repl.txt
new file mode 100644
index 000000000000..b97ee8c0a486
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/docs/repl.txt
@@ -0,0 +1,27 @@
+
+{{alias}}( lossFunction )
+    Returns the enumeration constant associated with an SGD loss function
+    string.
+
+    Downstream consumers of this function should *not* rely on specific integer
+    values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be
+    used in an opaque manner.
+
+    Parameters
+    ----------
+    lossFunction: string
+        Loss function.
+
+    Returns
+    -------
+    out: integer|null
+        Enumeration constant.
+
+    Examples
+    --------
+    > var out = {{alias}}( 'hinge' )
+    <number>
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/docs/types/index.d.ts
new file mode 100644
index 000000000000..a51a1af832a0
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/docs/types/index.d.ts
@@ -0,0 +1,40 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the enumeration constant associated with an SGD loss function string.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param lossFunction - loss function string
+* @returns enumeration constant
+*
+* @example
+* var v = str2enum( 'hinge' );
+* // returns <number>
+*/
+declare function str2enum( lossFunction: string ): number | null;
+
+
+// EXPORTS //
+
+export = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/docs/types/test.ts
new file mode 100644
index 000000000000..250ae7ed37c1
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/docs/types/test.ts
@@ -0,0 +1,39 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import str2enum = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number or null...
+{
+	str2enum( 'hinge' ); // $ExpectType number | null
+}
+
+// The compiler throws an error if not provided a string...
+{
+	str2enum( 10 ); // $ExpectError
+	str2enum( true ); // $ExpectError
+	str2enum( false ); // $ExpectError
+	str2enum( null ); // $ExpectError
+	str2enum( undefined ); // $ExpectError
+	str2enum( [] ); // $ExpectError
+	str2enum( {} ); // $ExpectError
+	str2enum( ( x: number ): number => x ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/examples/index.js
new file mode 100644
index 000000000000..8c89d599d7d0
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/examples/index.js
@@ -0,0 +1,29 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var str2enum = require( './../lib' );
+
+var v = str2enum( 'hinge' );
+console.log( v );
+// => <number>
+
+v = str2enum( 'epsilon-insensitive' );
+console.log( v );
+// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/lib/index.js
new file mode 100644
index 000000000000..1ce21e226de1
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/lib/index.js
@@ -0,0 +1,40 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the enumeration constant associated with an SGD loss function string.
+*
+* @module @stdlib/ml/base/sgd/loss-function-str2enum
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/loss-function-str2enum' );
+*
+* var v = str2enum( 'hinge' );
+* // returns <number>
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/lib/main.js
new file mode 100644
index 000000000000..3c2b5ece41e3
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/lib/main.js
@@ -0,0 +1,56 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
+var enumeration = require( '@stdlib/ml/base/sgd/loss-functions' ).enum;
+
+
+// VARIABLES //
+
+var ENUM = enumeration();
+
+
+// MAIN //
+
+/**
+* Returns the enumeration constant associated with an SGD loss function string.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `EPSILON_INSENSITIVE == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param {string} lossFunction - loss function string
+* @returns {(integer|null)} integer value or null
+*
+* @example
+* var v = str2enum( 'hinge' );
+* // returns <number>
+*/
+function str2enum( lossFunction ) {
+	var v = ENUM[ lossFunction ];
+	return ( isNumber( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
+}
+
+
+// EXPORTS //
+
+module.exports = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/package.json
new file mode 100644
index 000000000000..2dbbc9c8fb9f
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/loss-function-str2enum",
+  "version": "0.0.0",
+  "description": "Return the enumeration constant associated with an SGD loss function string.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "loss function",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/test/test.js
new file mode 100644
index 000000000000..7d4ecdc60cc3
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-str2enum/test/test.js
@@ -0,0 +1,73 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var enum2str = require( '@stdlib/ml/base/sgd/loss-function-enum2str' );
+var str2enum = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'epsilon-insensitive',
+	'hinge',
+	'huber',
+	'log',
+	'modified-huber',
+	'perceptron',
+	'squared-epsilon-insensitive',
+	'squared-error',
+	'squared-hinge'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof str2enum, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the enumeration constant associated with a string', function test( t ) {
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'beep',
+		'boop',
+		'foo',
+		'bar'
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( str2enum( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/README.md b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/README.md
new file mode 100644
index 000000000000..23c8b6647aac
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/README.md
@@ -0,0 +1,200 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# Loss functions
+
+> SGD loss functions.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var lossFunctions = require( '@stdlib/ml/base/sgd/loss-functions' );
+```
+
+#### lossFunctions()
+
+Returns a list of SGD loss functions.
+
+```javascript
+var out = lossFunctions();
+// e.g., returns [ 'epsilon-insensitive', 'hinge', 'huber', 'log', 'modified-huber', 'perceptron', 'squared-epsilon-insensitive', 'squared-error', 'squared-hinge' ]
+```
+
+The output array contains the following loss functions:
+
+-   `epsilon-insensitive`: penalty is the absolute value of the error whenever the absolute error exceeds epsilon and zero otherwise.
+-   `hinge`: hinge loss function. Corresponds to a soft-margin linear Support Vector Machine (SVM), which can handle non-linearly separable data.
+-   `huber`: squared-error loss for observations with error smaller than epsilon in magnitude, linear loss otherwise. Should be used in order to decrease the influence of outliers on the model fit.
+-   `log`: logistic loss function. Corresponds to Logistic Regression.
+-   `modified-huber`: Huber loss function variant for classification.
+-   `perceptron`: hinge loss function without a margin. Corresponds to the original perceptron by Rosenblatt (1957).
+-   `squared-epsilon-insensitive`: squared epsilon insensitive loss function.
+-   `squared-error`: squared error loss (i.e., the squared difference of the observed and fitted values).
+-   `squared-hinge`: squared hinge loss function SVM (L2-SVM).
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var contains = require( '@stdlib/array/base/assert/contains' ).factory;
+var lossFunction = require( '@stdlib/ml/base/sgd/loss-functions' );
+
+var isLossFunction = contains( lossFunction() );
+
+var bool = isLossFunction( 'hinge' );
+// returns true
+
+bool = isLossFunction( 'log' );
+// returns true
+
+bool = isLossFunction( 'beep' );
+// returns false
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+#include "stdlib/ml/base/sgd/loss_functions.h"
+```
+
+#### STDLIB_ML_SGD_LOSS_FUNCTION
+
+An enumeration of SGD loss functions with the following fields:
+
+-   **STDLIB_ML_SGD_EPSILON_INSENSITIVE**: penalty is the absolute value of the error whenever the absolute error exceeds epsilon and zero otherwise.
+-   **STDLIB_ML_SGD_HINGE**: corresponds to a soft-margin linear Support Vector Machine (SVM), which can handle non-linearly separable data.
+-   **STDLIB_ML_SGD_HUBER**: squared-error loss for observations with error smaller than epsilon in magnitude, linear loss otherwise.
+-   **STDLIB_ML_SGD_LOG**: corresponds to Logistic Regression.
+-   **STDLIB_ML_SGD_MODIFIED_HUBER**: Huber loss function variant for classification.
+-   **STDLIB_ML_SGD_PERCEPTRON**: corresponds to the original perceptron by Rosenblatt (1957).
+-   **STDLIB_ML_SGD_SQUARED_EPSILON_INSENSITIVE**: squared epsilon insensitive loss function.
+-   **STDLIB_ML_SGD_SQUARED_ERROR**: squared difference of the observed and fitted values.
+-   **STDLIB_ML_SGD_SQUARED_HINGE**: squared hinge loss function SVM (L2-SVM).
+
+```c
+#include "stdlib/ml/base/sgd/loss_functions.h"
+
+const enum STDLIB_ML_SGD_LOSS_FUNCTION v = STDLIB_ML_SGD_HINGE;
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+### Notes
+
+-   Enumeration constants should be considered opaque values, and one should **not** rely on specific integer values.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/benchmark/benchmark.js
new file mode 100644
index 000000000000..fc9b818bd1cd
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/benchmark/benchmark.js
@@ -0,0 +1,48 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isStringArray = require( '@stdlib/assert/is-string-array' ).primitives;
+var pkg = require( './../package.json' ).name;
+var lossFunctions = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var out;
+	var i;
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = lossFunctions();
+		if ( out.length < 2 ) {
+			b.fail( 'should return an array' );
+		}
+	}
+	b.toc();
+	if ( !isStringArray( out ) ) {
+		b.fail( 'should return an array of strings' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/docs/repl.txt
new file mode 100644
index 000000000000..6ccf305a4390
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/docs/repl.txt
@@ -0,0 +1,35 @@
+
+{{alias}}()
+    Returns a list of SGD loss functions.
+
+    The output array contains the following loss functions:
+
+    - epsilon-insensitive: penalty is the absolute value of the error whenever
+    the absolute error exceeds epsilon and zero otherwise.
+    - hinge: hinge loss function. Corresponds to a soft-margin linear Support
+    Vector Machine (SVM), which can handle non-linearly separable data.
+    - huber: squared-error loss for observations with error smaller than epsilon
+    in magnitude, linear loss otherwise. Should be used in order to decrease the
+    influence of outliers on the model fit.
+    - log: logistic loss function. Corresponds to Logistic Regression.
+    - modified-huber: Huber loss function variant for classification.
+    - perceptron: hinge loss function without a margin. Corresponds to the
+    original perceptron by Rosenblatt (1957).
+    - squared-epsilon-insensitive: squared epsilon insensitive loss function.
+    - squared-error: squared error loss (i.e., the squared difference of the
+    observed and fitted values).
+    - squared-hinge: squared hinge loss function SVM (L2-SVM).
+
+    Returns
+    -------
+    out: Array<string>
+        List of loss functions.
+
+    Examples
+    --------
+    > var out = {{alias}}()
+    [...]
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/docs/types/index.d.ts
new file mode 100644
index 000000000000..db530dc2cd67
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/docs/types/index.d.ts
@@ -0,0 +1,35 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns a list of SGD loss functions.
+*
+* @returns list of loss functions
+*
+* @example
+* var list = lossFunctions();
+* // e.g., returns [ 'epsilon-insensitive', 'hinge', 'huber', 'log', 'modified-huber', 'perceptron', 'squared-epsilon-insensitive', 'squared-error', 'squared-hinge' ]
+*/
+declare function lossFunctions(): Array<string>;
+
+
+// EXPORTS //
+
+export = lossFunctions;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/docs/types/test.ts
new file mode 100644
index 000000000000..6c51642dacaa
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/docs/types/test.ts
@@ -0,0 +1,32 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import lossFunctions = require( './index' );
+
+
+// TESTS //
+
+// The function returns an array of strings...
+{
+	lossFunctions(); // $ExpectType string[]
+}
+
+// The compiler throws an error if the function is provided any arguments...
+{
+	lossFunctions( 9 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/examples/index.js
new file mode 100644
index 000000000000..1fa9e2f61bbf
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/examples/index.js
@@ -0,0 +1,36 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var contains = require( '@stdlib/array/base/assert/contains' ).factory;
+var lossFunctions = require( './../lib' );
+
+var isLossFunction = contains( lossFunctions() );
+
+var bool = isLossFunction( 'hinge' );
+console.log( bool );
+// => true
+
+bool = isLossFunction( 'log' );
+console.log( bool );
+// => true
+
+bool = isLossFunction( 'beep' );
+console.log( bool );
+// => false
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/include/stdlib/ml/base/sgd/loss_functions.h b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/include/stdlib/ml/base/sgd/loss_functions.h
new file mode 100644
index 000000000000..6bb5d177c6e8
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/include/stdlib/ml/base/sgd/loss_functions.h
@@ -0,0 +1,54 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#ifndef STDLIB_ML_BASE_SGD_LOSS_FUNCTIONS_H
+#define STDLIB_ML_BASE_SGD_LOSS_FUNCTIONS_H
+
+/**
+* Enumeration of SGD loss functions.
+*/
+enum STDLIB_ML_SGD_LOSS_FUNCTION {
+	// Penalty is the absolute value of the error whenever the absolute error exceeds epsilon and zero otherwise:
+	STDLIB_ML_SGD_EPSILON_INSENSITIVE = 0,
+
+	// Corresponds to a soft-margin linear Support Vector Machine (SVM), which can handle non-linearly separable data:
+	STDLIB_ML_SGD_HINGE,
+
+	// Squared-error loss for observations with error smaller than epsilon in magnitude, linear loss otherwise:
+	STDLIB_ML_SGD_HUBER,
+
+	// Corresponds to Logistic Regression:
+	STDLIB_ML_SGD_LOG,
+
+	// Huber loss function variant for classification:
+	STDLIB_ML_SGD_MODIFIED_HUBER,
+
+	// Corresponds to the original perceptron by Rosenblatt (1957):
+	STDLIB_ML_SGD_PERCEPTRON,
+
+	// Squared epsilon insensitive loss function:
+	STDLIB_ML_SGD_SQUARED_EPSILON_INSENSITIVE,
+
+	// Squared difference of the observed and fitted values:
+	STDLIB_ML_SGD_SQUARED_ERROR,
+
+	// Squared hinge loss function SVM (L2-SVM):
+	STDLIB_ML_SGD_SQUARED_HINGE
+};
+
+#endif // !STDLIB_ML_BASE_SGD_LOSS_FUNCTIONS_H
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/data.json b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/data.json
new file mode 100644
index 000000000000..7398567751ce
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/data.json
@@ -0,0 +1,11 @@
+[
+  "epsilon-insensitive",
+  "hinge",
+  "huber",
+  "log",
+  "modified-huber",
+  "perceptron",
+  "squared-epsilon-insensitive",
+  "squared-error",
+  "squared-hinge"
+]
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/enum.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/enum.js
new file mode 100644
index 000000000000..c1171c01f482
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/enum.js
@@ -0,0 +1,72 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MAIN //
+
+/**
+* Returns an object mapping supported loss functions to integer values for purposes of C inter-operation.
+*
+* ## Notes
+*
+* -   Downstream consumers of this mapping should **not** rely on specific integer values (e.g., `HINGE == 0`). Instead, the object should be used in an opaque manner.
+* -   The main purpose of this function is JavaScript and C inter-operation.
+*
+* @returns {Object} object mapping supported loss functions to integer values
+*
+* @example
+* var table = enumerated();
+* // returns <Object>
+*/
+function enumerated() {
+	// NOTE: the following should match the C `loss_functions.h` enumeration!!!!
+	return {
+		// Penalty is the absolute value of the error whenever the absolute error exceeds epsilon and zero otherwise:
+		'epsilon-insensitive': 0,
+
+		// Corresponds to a soft-margin linear Support Vector Machine (SVM), which can handle non-linearly separable data:
+		'hinge': 1,
+
+		// Squared-error loss for observations with error smaller than epsilon in magnitude, linear loss otherwise:
+		'huber': 2,
+
+		// Corresponds to Logistic Regression:
+		'log': 3,
+
+		// Huber loss function variant for classification:
+		'modified-huber': 4,
+
+		// Corresponds to the original perceptron by Rosenblatt (1957):
+		'perceptron': 5,
+
+		// Squared epsilon insensitive loss function:
+		'squared-epsilon-insensitive': 6,
+
+		// Squared difference of the observed and fitted values:
+		'squared-error': 7,
+
+		// Squared hinge loss function SVM (L2-SVM):
+		'squared-hinge': 8
+	};
+}
+
+
+// EXPORTS //
+
+module.exports = enumerated;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/index.js
new file mode 100644
index 000000000000..06fd7d316709
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/index.js
@@ -0,0 +1,47 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return a list of SGD loss functions.
+*
+* @module @stdlib/ml/base/sgd/loss-functions
+*
+* @example
+* var lossFunctions = require( '@stdlib/ml/base/sgd/loss-functions' );
+*
+* var list = lossFunctions();
+* // e.g., returns [ 'epsilon-insensitive', 'hinge', 'huber', 'log', 'modified-huber', 'perceptron', 'squared-epsilon-insensitive', 'squared-error', 'squared-hinge' ]
+*/
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var main = require( './main.js' );
+var enumeration = require( './enum.js' );
+
+
+// MAIN //
+
+setReadOnly( main, 'enum', enumeration );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/main.js
new file mode 100644
index 000000000000..13d8cfacc3a0
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/lib/main.js
@@ -0,0 +1,44 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var DATA = require( './data.json' );
+
+
+// MAIN //
+
+/**
+* Returns a list of SGD loss functions.
+*
+* @returns {Array<string>} list of loss functions
+*
+* @example
+* var list = lossFunctions();
+* // e.g., returns [ 'epsilon-insensitive', 'hinge', 'huber', 'log', 'modified-huber', 'perceptron', 'squared-epsilon-insensitive', 'squared-error', 'squared-hinge' ]
+*/
+function lossFunctions() {
+	return DATA.slice();
+}
+
+
+// EXPORTS //
+
+module.exports = lossFunctions;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/manifest.json b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/manifest.json
new file mode 100644
index 000000000000..844d692f6439
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/manifest.json
@@ -0,0 +1,36 @@
+{
+  "options": {},
+  "fields": [
+    {
+      "field": "src",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "include",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "libraries",
+      "resolve": false,
+      "relative": false
+    },
+    {
+      "field": "libpath",
+      "resolve": true,
+      "relative": false
+    }
+  ],
+  "confs": [
+    {
+      "src": [],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": []
+    }
+  ]
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/package.json b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/package.json
new file mode 100644
index 000000000000..0d5f56da7da8
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/package.json
@@ -0,0 +1,66 @@
+{
+  "name": "@stdlib/ml/base/sgd/loss-functions",
+  "version": "0.0.0",
+  "description": "SGD loss functions.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "include": "./include",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "loss functions",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/test/test.js
new file mode 100644
index 000000000000..d198e0c92a70
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-functions/test/test.js
@@ -0,0 +1,87 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var hasOwnProp = require( '@stdlib/assert/has-own-property' );
+var isNonNegativeInteger = require( '@stdlib/assert/is-nonnegative-integer' ).isPrimitive;
+var lossFunctions = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof lossFunctions, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns a list of SGD loss functions', function test( t ) {
+	var expected;
+	var actual;
+
+	expected = [
+		'epsilon-insensitive',
+		'hinge',
+		'huber',
+		'log',
+		'modified-huber',
+		'perceptron',
+		'squared-epsilon-insensitive',
+		'squared-error',
+		'squared-hinge'
+	];
+	actual = lossFunctions();
+
+	t.deepEqual( actual, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'attached to the main function is an `enum` method to return an object mapping loss functions to integer values for C inter-operation', function test( t ) {
+	var obj;
+	var o;
+	var i;
+
+	t.strictEqual( hasOwnProp( lossFunctions, 'enum' ), true, 'has property' );
+	t.strictEqual( typeof lossFunctions.enum, 'function', 'has method' );
+
+	obj = lossFunctions.enum();
+	t.strictEqual( typeof obj, 'object', 'returns expected value' );
+
+	// List of values which should be supported...
+	o = [
+		'epsilon-insensitive',
+		'hinge',
+		'huber',
+		'log',
+		'modified-huber',
+		'perceptron',
+		'squared-epsilon-insensitive',
+		'squared-error',
+		'squared-hinge'
+	];
+	for ( i = 0; i < o.length; i++ ) {
+		t.strictEqual( hasOwnProp( obj, o[ i ] ), true, 'has property `' + o[ i ] + '`' );
+		t.strictEqual( isNonNegativeInteger( obj[ o[ i ] ] ), true, 'returns expected value' );
+	}
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/README.md b/lib/node_modules/@stdlib/ml/base/sgd/penalties/README.md
new file mode 100644
index 000000000000..9ce1f424153d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/README.md
@@ -0,0 +1,190 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# Penalties
+
+> SGD penalties.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var penalties = require( '@stdlib/ml/base/sgd/penalties' );
+```
+
+#### penalties()
+
+Returns a list of SGD penalties.
+
+```javascript
+var out = penalties();
+// e.g., returns [ 'elasticnet', 'l1', 'l2', 'none' ]
+```
+
+The output array contains the following penalties:
+
+-   `elasticnet`: regularization method that linearly combines the L1 and L2 penalties of the lasso and ridge methods.
+-   `l1`: L1 regularization (also called LASSO) leads to sparse models by adding a penalty based on the absolute value of coefficients.
+-   `l2`: L2 regularization (also called ridge regression) encourages smaller, more evenly distributed weights by adding a penalty based on the square of the coefficients.
+-   `none`: no regularization.
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var contains = require( '@stdlib/array/base/assert/contains' ).factory;
+var penalties = require( '@stdlib/ml/base/sgd/penalties' );
+
+var isPenalty = contains( penalties() );
+
+var bool = isPenalty( 'l1' );
+// returns true
+
+bool = isPenalty( 'l2' );
+// returns true
+
+bool = isPenalty( 'beep' );
+// returns false
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- C interface documentation. -->
+
+* * *
+
+<section class="c">
+
+## C APIs
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- C usage documentation. -->
+
+<section class="usage">
+
+### Usage
+
+```c
+#include "stdlib/ml/base/sgd/penalties.h"
+```
+
+#### STDLIB_ML_SGD_PENALTY
+
+An enumeration of SGD penalties with the following fields:
+
+-   **STDLIB_ML_SGD_ELASTICNET**: regularization method that linearly combines the L1 and L2 penalties of the lasso and ridge methods.
+-   **STDLIB_ML_SGD_L1**: L1 regularization (also called LASSO) leads to sparse models by adding a penalty based on the absolute value of coefficients.
+-   **STDLIB_ML_SGD_L2**: L2 regularization (also called ridge regression) encourages smaller, more evenly distributed weights by adding a penalty based on the square of the coefficients.
+-   **STDLIB_ML_SGD_NONE**: no regularization.
+
+```c
+#include "stdlib/ml/base/sgd/penalties.h"
+
+const enum STDLIB_ML_SGD_PENALTY v = STDLIB_ML_SGD_ELASTICNET;
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+### Notes
+
+-   Enumeration constants should be considered opaque values, and one should **not** rely on specific integer values.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- C API usage examples. -->
+
+<section class="examples">
+
+</section>
+
+<!-- /.examples -->
+
+</section>
+
+<!-- /.c -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/penalties/benchmark/benchmark.js
new file mode 100644
index 000000000000..a279d0987452
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/benchmark/benchmark.js
@@ -0,0 +1,48 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isStringArray = require( '@stdlib/assert/is-string-array' ).primitives;
+var pkg = require( './../package.json' ).name;
+var penalties = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var out;
+	var i;
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = penalties();
+		if ( out.length < 2 ) {
+			b.fail( 'should return an array' );
+		}
+	}
+	b.toc();
+	if ( !isStringArray( out ) ) {
+		b.fail( 'should return an array of strings' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/penalties/docs/repl.txt
new file mode 100644
index 000000000000..d1956a947c8f
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/docs/repl.txt
@@ -0,0 +1,28 @@
+
+{{alias}}()
+    Returns a list of SGD penalties.
+
+    The output array contains the following penalties:
+
+    - elasticnet: regularization method that linearly combines the L1 and L2
+    penalties of the lasso and ridge methods.
+    - l1: L1 regularization (also called LASSO) leads to sparse models by adding
+    a penalty based on the absolute value of coefficients.
+    - l2: L2 regularization (also called ridge regression) encourages smaller,
+    more evenly distributed weights by adding a penalty based on the square of
+    the coefficients.
+    - none: no regularization.
+
+    Returns
+    -------
+    out: Array<string>
+        List of penalties.
+
+    Examples
+    --------
+    > var out = {{alias}}()
+    [...]
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/penalties/docs/types/index.d.ts
new file mode 100644
index 000000000000..0adb8b371eab
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/docs/types/index.d.ts
@@ -0,0 +1,35 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns a list of SGD penalties.
+*
+* @returns list of penalties
+*
+* @example
+* var list = penalties();
+* // e.g., returns [ 'elasticnet', 'l1', 'l2', 'none' ]
+*/
+declare function penalties(): Array<string>;
+
+
+// EXPORTS //
+
+export = penalties;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/penalties/docs/types/test.ts
new file mode 100644
index 000000000000..c536e7fc758d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/docs/types/test.ts
@@ -0,0 +1,32 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import penalties = require( './index' );
+
+
+// TESTS //
+
+// The function returns an array of strings...
+{
+	penalties(); // $ExpectType string[]
+}
+
+// The compiler throws an error if the function is provided any arguments...
+{
+	penalties( 9 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/penalties/examples/index.js
new file mode 100644
index 000000000000..5d65a24f81e0
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/examples/index.js
@@ -0,0 +1,36 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var contains = require( '@stdlib/array/base/assert/contains' ).factory;
+var penalties = require( './../lib' );
+
+var isPenalty = contains( penalties() );
+
+var bool = isPenalty( 'elasticnet' );
+console.log( bool );
+// => true
+
+bool = isPenalty( 'l1' );
+console.log( bool );
+// => true
+
+bool = isPenalty( 'beep' );
+console.log( bool );
+// => false
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/include/stdlib/ml/base/sgd/penalties.h b/lib/node_modules/@stdlib/ml/base/sgd/penalties/include/stdlib/ml/base/sgd/penalties.h
new file mode 100644
index 000000000000..f8cba841211f
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/include/stdlib/ml/base/sgd/penalties.h
@@ -0,0 +1,39 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#ifndef STDLIB_ML_BASE_SGD_PENALTIES_H
+#define STDLIB_ML_BASE_SGD_PENALTIES_H
+
+/**
+* Enumeration of SGD penalties.
+*/
+enum STDLIB_ML_SGD_PENALTY {
+	// Regularization method that linearly combines the L1 and L2 penalties of the lasso and ridge methods:
+	STDLIB_ML_SGD_ELASTICNET = 0,
+
+	// L1 regularization (also called LASSO) leads to sparse models by adding a penalty based on the absolute value of coefficients:
+	STDLIB_ML_SGD_L1,
+
+	// L2 regularization (also called ridge regression) encourages smaller, more evenly distributed weights by adding a penalty based on the square of the coefficients:
+	STDLIB_ML_SGD_L2,
+
+	// No regularization:
+	STDLIB_ML_SGD_NONE
+};
+
+#endif // !STDLIB_ML_BASE_SGD_PENALTIES_H
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/data.json b/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/data.json
new file mode 100644
index 000000000000..71d176852af9
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/data.json
@@ -0,0 +1,6 @@
+[
+  "elasticnet",
+  "l1",
+  "l2",
+  "none"
+]
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/enum.js b/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/enum.js
new file mode 100644
index 000000000000..834628e0894a
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/enum.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MAIN //
+
+/**
+* Returns an object mapping supported penalties to integer values for purposes of C inter-operation.
+*
+* ## Notes
+*
+* -   Downstream consumers of this mapping should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the object should be used in an opaque manner.
+* -   The main purpose of this function is JavaScript and C inter-operation.
+*
+* @returns {Object} object mapping supported penalties to integer values
+*
+* @example
+* var table = enumerated();
+* // returns <Object>
+*/
+function enumerated() {
+	// NOTE: the following should match the C `penalties.h` enumeration!!!!
+	return {
+		// Regularization method that linearly combines the L1 and L2 penalties of the lasso and ridge methods:
+		'elasticnet': 0,
+
+		// L1 regularization (also called LASSO) leads to sparse models by adding a penalty based on the absolute value of coefficients:
+		'l1': 1,
+
+		// L2 regularization (also called ridge regression) encourages smaller, more evenly distributed weights by adding a penalty based on the square of the coefficients:
+		'l2': 2,
+
+		// No regularization:
+		'none': 3
+	};
+}
+
+
+// EXPORTS //
+
+module.exports = enumerated;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/index.js
new file mode 100644
index 000000000000..45f803267f6d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/index.js
@@ -0,0 +1,47 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return a list of SGD penalties.
+*
+* @module @stdlib/ml/base/sgd/penalties
+*
+* @example
+* var penalties = require( '@stdlib/ml/base/sgd/penalties' );
+*
+* var list = penalties();
+* // e.g., returns [ 'elasticnet', 'l1', 'l2', 'none' ]
+*/
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var main = require( './main.js' );
+var enumeration = require( './enum.js' );
+
+
+// MAIN //
+
+setReadOnly( main, 'enum', enumeration );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/main.js
new file mode 100644
index 000000000000..6ce92eec3c15
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/lib/main.js
@@ -0,0 +1,44 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var DATA = require( './data.json' );
+
+
+// MAIN //
+
+/**
+* Returns a list of SGD penalties.
+*
+* @returns {Array<string>} list of penalties
+*
+* @example
+* var list = penalties();
+* // e.g., returns [ 'elasticnet', 'l1', 'l2', 'none' ]
+*/
+function penalties() {
+	return DATA.slice();
+}
+
+
+// EXPORTS //
+
+module.exports = penalties;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/manifest.json b/lib/node_modules/@stdlib/ml/base/sgd/penalties/manifest.json
new file mode 100644
index 000000000000..844d692f6439
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/manifest.json
@@ -0,0 +1,36 @@
+{
+  "options": {},
+  "fields": [
+    {
+      "field": "src",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "include",
+      "resolve": true,
+      "relative": true
+    },
+    {
+      "field": "libraries",
+      "resolve": false,
+      "relative": false
+    },
+    {
+      "field": "libpath",
+      "resolve": true,
+      "relative": false
+    }
+  ],
+  "confs": [
+    {
+      "src": [],
+      "include": [
+        "./include"
+      ],
+      "libraries": [],
+      "libpath": [],
+      "dependencies": []
+    }
+  ]
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/package.json b/lib/node_modules/@stdlib/ml/base/sgd/penalties/package.json
new file mode 100644
index 000000000000..d393574d3c19
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/package.json
@@ -0,0 +1,66 @@
+{
+  "name": "@stdlib/ml/base/sgd/penalties",
+  "version": "0.0.0",
+  "description": "SGD penalties.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "include": "./include",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "penalties",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalties/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/penalties/test/test.js
new file mode 100644
index 000000000000..3607086d93f7
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalties/test/test.js
@@ -0,0 +1,77 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var hasOwnProp = require( '@stdlib/assert/has-own-property' );
+var isNonNegativeInteger = require( '@stdlib/assert/is-nonnegative-integer' ).isPrimitive;
+var penalties = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof penalties, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns a list of SGD penalties', function test( t ) {
+	var expected;
+	var actual;
+
+	expected = [
+		'elasticnet',
+		'l1',
+		'l2',
+		'none'
+	];
+	actual = penalties();
+
+	t.deepEqual( actual, expected, 'returns expected value' );
+	t.end();
+});
+
+tape( 'attached to the main function is an `enum` method to return an object mapping penalties to integer values for C inter-operation', function test( t ) {
+	var obj;
+	var o;
+	var i;
+
+	t.strictEqual( hasOwnProp( penalties, 'enum' ), true, 'has property' );
+	t.strictEqual( typeof penalties.enum, 'function', 'has method' );
+
+	obj = penalties.enum();
+	t.strictEqual( typeof obj, 'object', 'returns expected value' );
+
+	// List of values which should be supported...
+	o = [
+		'elasticnet',
+		'l1',
+		'l2',
+		'none'
+	];
+	for ( i = 0; i < o.length; i++ ) {
+		t.strictEqual( hasOwnProp( obj, o[ i ] ), true, 'has property `' + o[ i ] + '`' );
+		t.strictEqual( isNonNegativeInteger( obj[ o[ i ] ] ), true, 'returns expected value' );
+	}
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/README.md b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/README.md
new file mode 100644
index 000000000000..a3118b0e8a04
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/README.md
@@ -0,0 +1,121 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# enum2str
+
+> Return the SGD penalty string associated with an SGD penalty enumeration constant.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var enum2str = require( '@stdlib/ml/base/sgd/penalty-enum2str' );
+```
+
+#### enum2str( value )
+
+Returns the SGD penalty string associated with an SGD penalty enumeration constant.
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+
+var v = str2enum( 'elasticnet' );
+// returns <number>
+
+var s = enum2str( v );
+// returns 'elasticnet'
+```
+
+If unable to resolve an SGD penalty string, the function returns `null`.
+
+```javascript
+var v = enum2str( -999999999 );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+var enum2str = require( '@stdlib/ml/base/sgd/penalty-enum2str' );
+
+var str = enum2str( str2enum( 'elasticnet' ) );
+// returns 'elasticnet'
+
+str = enum2str( str2enum( 'l1' ) );
+// returns 'l1'
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/benchmark/benchmark.js
new file mode 100644
index 000000000000..797e64abd52d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/benchmark/benchmark.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+var pkg = require( './../package.json' ).name;
+var enum2str = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		str2enum( 'elasticnet' ),
+		str2enum( 'l1' ),
+		str2enum( 'l2' ),
+		str2enum( 'none' )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = enum2str( values[ i%values.length ] );
+		if ( typeof out !== 'string' ) {
+			b.fail( 'should return a string' );
+		}
+	}
+	b.toc();
+	if ( !isString( out ) ) {
+		b.fail( 'should return a string' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/docs/repl.txt
new file mode 100644
index 000000000000..6df9c9be91ac
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/docs/repl.txt
@@ -0,0 +1,25 @@
+
+{{alias}}( value )
+    Returns the SGD penalty string associated with an SGD penalty enumeration
+    constant.
+
+    Parameters
+    ----------
+    value: integer
+        Penalty enumeration constant.
+
+    Returns
+    -------
+    out: string|null
+        Penalty string.
+
+    Examples
+    --------
+    > var v = 'elasticnet';
+    > v = {{alias:@stdlib/ml/base/sgd/penalty-str2enum}}( v );
+    > var out = {{alias}}( v )
+    'elasticnet'
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/docs/types/index.d.ts
new file mode 100644
index 000000000000..7137a499dabd
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/docs/types/index.d.ts
@@ -0,0 +1,41 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the SGD penalty string associated with an SGD penalty enumeration constant.
+*
+* @param value - enumeration constant
+* @returns penalty string
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+*
+* var v = str2enum( 'elasticnet' );
+* // returns <number>
+*
+* var s = enum2str( v );
+* // returns 'elasticnet'
+*/
+declare function enum2str( value: number ): string | null;
+
+
+// EXPORTS //
+
+export = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/docs/types/test.ts
new file mode 100644
index 000000000000..fe80992105ef
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/docs/types/test.ts
@@ -0,0 +1,39 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import enum2str = require( './index' );
+
+
+// TESTS //
+
+// The function returns a string or null...
+{
+	enum2str( 0 ); // $ExpectType string | null
+}
+
+// The compiler throws an error if not provided a number...
+{
+	enum2str( '10' ); // $ExpectError
+	enum2str( true ); // $ExpectError
+	enum2str( false ); // $ExpectError
+	enum2str( null ); // $ExpectError
+	enum2str( undefined ); // $ExpectError
+	enum2str( [] ); // $ExpectError
+	enum2str( {} ); // $ExpectError
+	enum2str( ( x: number ): number => x ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/examples/index.js
new file mode 100644
index 000000000000..b7c9a2f589d0
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/examples/index.js
@@ -0,0 +1,30 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+var enum2str = require( './../lib' );
+
+var str = enum2str( str2enum( 'l1' ) );
+console.log( str );
+// => 'l1'
+
+str = enum2str( str2enum( 'elasticnet' ) );
+console.log( str );
+// => 'elasticnet'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/lib/index.js
new file mode 100644
index 000000000000..7436b8f2cbef
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/lib/index.js
@@ -0,0 +1,44 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the SGD penalty string associated with an SGD penalty enumeration constant.
+*
+* @module @stdlib/ml/base/sgd/penalty-enum2str
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+* var enum2str = require( '@stdlib/ml/base/sgd/penalty-enum2str' );
+*
+* var v = str2enum( 'elasticnet' );
+* // returns <number>
+*
+* var s = enum2str( v );
+* // returns 'elasticnet'
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/lib/main.js
new file mode 100644
index 000000000000..69e12146c0a3
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/lib/main.js
@@ -0,0 +1,60 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var objectInverse = require( '@stdlib/object/inverse' );
+var enumeration = require( '@stdlib/ml/base/sgd/penalties' ).enum;
+
+
+// VARIABLES //
+
+var hash = objectInverse( enumeration(), {
+	'duplicates': false
+});
+
+
+// MAIN //
+
+/**
+* Returns the SGD penalty string associated with an SGD penalty enumeration constant.
+*
+* @param {integer} value - penalty enumeration constant
+* @returns {(string|null)} penalty string or null
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+*
+* var v = str2enum( 'elasticnet' );
+* // returns <number>
+*
+* var s = enum2str( v );
+* // returns 'elasticnet'
+*/
+function enum2str( value ) {
+	var v = hash[ value ];
+	return ( isString( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
+}
+
+
+// EXPORTS //
+
+module.exports = enum2str;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/package.json b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/package.json
new file mode 100644
index 000000000000..8452c7b944fe
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/penalty-enum2str",
+  "version": "0.0.0",
+  "description": "Return the SGD penalty string associated with an SGD penalty enumeration constant.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "penalty",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/test/test.js
new file mode 100644
index 000000000000..cd68afd128d2
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-enum2str/test/test.js
@@ -0,0 +1,67 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+var enum2str = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'elasticnet',
+	'l1',
+	'l2',
+	'none'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof enum2str, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the string associated with an enumeration constant', function test( t ) {
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		-9999999,
+		-999999999,
+		-99999999999
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( enum2str( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/README.md
new file mode 100644
index 000000000000..bbca9e0eb871
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/README.md
@@ -0,0 +1,124 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# resolve
+
+> Return the enumeration constant associated with a supported SGD penalty value.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var resolve = require( '@stdlib/ml/base/sgd/penalty-resolve-enum' );
+```
+
+#### resolve( value )
+
+Returns the enumeration constant associated with a supported SGD penalty value.
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+
+var v = resolve( 'elasticnet' );
+// returns <number>
+
+v = resolve( str2enum( 'l1' ) );
+// returns <number>
+```
+
+If unable to resolve an enumeration constant, the function returns `null`.
+
+```javascript
+var v = resolve( 'beep' );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+## Notes
+
+-   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var resolve = require( '@stdlib/ml/base/sgd/penalty-resolve-enum' );
+
+var v = resolve( 'elasticnet' );
+// returns <number>
+
+v = resolve( 'l1' );
+// returns <number>
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/benchmark/benchmark.js
new file mode 100644
index 000000000000..30a8def772f0
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/benchmark/benchmark.js
@@ -0,0 +1,83 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var resolve = require( './../lib' );
+
+
+// MAIN //
+
+bench( format( '%s::string', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'elasticnet',
+		'l1',
+		'l2'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'number' ) {
+			b.fail( 'should return a number' );
+		}
+	}
+	b.toc();
+	if ( !isInteger( out ) ) {
+		b.fail( 'should return an integer' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( format( '%s::integer', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		str2enum( 'elasticnet' ),
+		str2enum( 'l1' ),
+		str2enum( 'l2' )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'number' ) {
+			b.fail( 'should return a number' );
+		}
+	}
+	b.toc();
+	if ( !isInteger( out ) ) {
+		b.fail( 'should return an integer' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/docs/repl.txt
new file mode 100644
index 000000000000..5971f05120d1
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/docs/repl.txt
@@ -0,0 +1,31 @@
+
+{{alias}}( value )
+    Returns the enumeration constant associated with a supported SGD penalty
+    value.
+
+    Downstream consumers of this function should *not* rely on specific integer
+    values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an
+    opaque manner.
+
+    Parameters
+    ----------
+    value: any
+        Penalty value.
+
+    Returns
+    -------
+    out: integer|null
+        Enumeration constant.
+
+    Examples
+    --------
+    > var s = 'elasticnet';
+    > var v = {{alias}}( s )
+    <number>
+    > v = {{alias:@stdlib/ml/base/sgd/penalty-str2enum}}( s );
+    > {{alias}}( v )
+    <number>
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/docs/types/index.d.ts
new file mode 100644
index 000000000000..8393347fec1f
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/docs/types/index.d.ts
@@ -0,0 +1,40 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the enumeration constant associated with a supported SGD penalty value.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param value - penalty value
+* @returns enumeration constant
+*
+* @example
+* var v = resolve( 'elasticnet' );
+* // returns <number>
+*/
+declare function resolve( value: any ): number | null;
+
+
+// EXPORTS //
+
+export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/docs/types/test.ts
new file mode 100644
index 000000000000..b585b2f1305d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/docs/types/test.ts
@@ -0,0 +1,28 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import resolve = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number or null...
+{
+	resolve( 0 ); // $ExpectType number | null
+	resolve( 'elasticnet' ); // $ExpectType number | null
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/examples/index.js
new file mode 100644
index 000000000000..4d3c6047ef88
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/examples/index.js
@@ -0,0 +1,29 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var resolve = require( './../lib' );
+
+var v = resolve( 'elasticnet' );
+console.log( v );
+// => <number>
+
+v = resolve( 'l1' );
+console.log( v );
+// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/lib/index.js
new file mode 100644
index 000000000000..7b4717971240
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/lib/index.js
@@ -0,0 +1,40 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the enumeration constant associated with a supported SGD penalty value.
+*
+* @module @stdlib/ml/base/sgd/penalty-resolve-enum
+*
+* @example
+* var resolve = require( '@stdlib/ml/base/sgd/penalty-resolve-enum' );
+*
+* var v = resolve( 'elasticnet' );
+* // returns <number>
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/lib/main.js
new file mode 100644
index 000000000000..af0ed35a8b96
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/lib/main.js
@@ -0,0 +1,57 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var enum2str = require( '@stdlib/ml/base/sgd/penalty-enum2str' );
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+
+
+// MAIN //
+
+/**
+* Returns the enumeration constant associated with a supported SGD penalty value.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param {*} value - penalty value
+* @returns {(integer|null)} enumeration constant or null
+*
+* @example
+* var v = resolve( 'elasticnet' );
+* // returns <number>
+*/
+function resolve( value ) {
+	var t = ( typeof value );
+	if ( t === 'number' ) {
+		return ( enum2str( value ) ) ? value : null;
+	}
+	if ( t === 'string' ) {
+		return str2enum( value );
+	}
+	return null;
+}
+
+
+// EXPORTS //
+
+module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/package.json
new file mode 100644
index 000000000000..0eab0ad07ba9
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/penalty-resolve-enum",
+  "version": "0.0.0",
+  "description": "Return the enumeration constant associated with a supported SGD penalty value.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "penalty",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/test/test.js
new file mode 100644
index 000000000000..4656e1415cc3
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-enum/test/test.js
@@ -0,0 +1,75 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+var resolve = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'elasticnet',
+	'l1',
+	'l2'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the enumeration constant associated with an SGD penalty value', function test( t ) {
+	var v;
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		v = str2enum( VALUES[ i ] );
+		t.strictEqual( resolve( VALUES[ i ] ), v, 'returns expected value' );
+		t.strictEqual( resolve( v ), v, 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'beep',
+		'boop',
+		'foo',
+		'bar',
+		-99999999,
+		-9999999999,
+		-9999999999999,
+		true,
+		false
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/README.md b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/README.md
new file mode 100644
index 000000000000..fcd3522096e4
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/README.md
@@ -0,0 +1,121 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# resolve
+
+> Return the penalty string associated with a supported SGD penalty value.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var resolve = require( '@stdlib/ml/base/sgd/penalty-resolve-str' );
+```
+
+#### resolve( value )
+
+Returns the penalty string associated with a supported SGD penalty value.
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+
+var v = resolve( 'l1' );
+// returns 'l1'
+
+v = resolve( str2enum( 'l1' ) );
+// returns 'l1'
+```
+
+If unable to resolve an SGD penalty string, the function returns `null`.
+
+```javascript
+var v = resolve( 'beep' );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+var resolve = require( '@stdlib/ml/base/sgd/penalty-resolve-str' );
+
+var v = resolve( str2enum( 'l1' ) );
+// returns 'l1'
+
+v = resolve( str2enum( 'elasticnet' ) );
+// returns 'elasticnet'
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/benchmark/benchmark.js
new file mode 100644
index 000000000000..76de1842a447
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/benchmark/benchmark.js
@@ -0,0 +1,83 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var resolve = require( './../lib' );
+
+
+// MAIN //
+
+bench( format( '%s::string', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'elasticnet',
+		'l1',
+		'l2'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'string' ) {
+			b.fail( 'should return a string' );
+		}
+	}
+	b.toc();
+	if ( !isString( out ) ) {
+		b.fail( 'should return a string' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( format( '%s::integer', pkg ), function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		str2enum( 'elasticnet' ),
+		str2enum( 'l1' ),
+		str2enum( 'l2' )
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = resolve( values[ i%values.length ] );
+		if ( typeof out !== 'string' ) {
+			b.fail( 'should return a string' );
+		}
+	}
+	b.toc();
+	if ( !isString( out ) ) {
+		b.fail( 'should return a string' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/docs/repl.txt
new file mode 100644
index 000000000000..cb426567836a
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/docs/repl.txt
@@ -0,0 +1,25 @@
+
+{{alias}}( value )
+    Returns the penalty string associated with a supported SGD penalty value.
+
+    Parameters
+    ----------
+    value: any
+        Penalty value.
+
+    Returns
+    -------
+    out: string|null
+        Penalty string.
+
+    Examples
+    --------
+    > var v = {{alias}}( 'l1' )
+    'l1'
+    > v = {{alias:@stdlib/ml/base/sgd/penalty-str2enum}}( 'l1' );
+    > out = {{alias}}( v )
+    'l1'
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/docs/types/index.d.ts
new file mode 100644
index 000000000000..c23b7f996dde
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/docs/types/index.d.ts
@@ -0,0 +1,38 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the penalty string associated with a supported SGD penalty value.
+*
+* @param value - penalty value
+* @returns penalty string or null
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+*
+* var v = resolve( str2enum( 'l1' ) );
+* // returns 'l1'
+*/
+declare function resolve( value: any ): string | null;
+
+
+// EXPORTS //
+
+export = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/docs/types/test.ts
new file mode 100644
index 000000000000..0c5f41116684
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/docs/types/test.ts
@@ -0,0 +1,28 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import resolve = require( './index' );
+
+
+// TESTS //
+
+// The function returns a string or null...
+{
+	resolve( 0 ); // $ExpectType string | null
+	resolve( 'l1' ); // $ExpectType string | null
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/examples/index.js
new file mode 100644
index 000000000000..e9f60d9d54e1
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/examples/index.js
@@ -0,0 +1,30 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+var resolve = require( './../lib' );
+
+var v = resolve( str2enum( 'l1' ) );
+console.log( v );
+// => 'l1'
+
+v = resolve( str2enum( 'elasticnet' ) );
+console.log( v );
+// => 'elasticnet'
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/lib/index.js
new file mode 100644
index 000000000000..30e054304f6e
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/lib/index.js
@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the penalty string associated with a supported SGD penalty value.
+*
+* @module @stdlib/ml/base/sgd/penalty-resolve-str
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+* var resolve = require( '@stdlib/ml/base/sgd/penalty-resolve-str' );
+*
+* var v = resolve( str2enum( 'l1' ) );
+* // returns 'l1'
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/lib/main.js
new file mode 100644
index 000000000000..6f1ae8f040ef
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/lib/main.js
@@ -0,0 +1,55 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var enum2str = require( '@stdlib/ml/base/sgd/penalty-enum2str' );
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+
+
+// MAIN //
+
+/**
+* Returns the penalty string associated with a supported SGD penalty value.
+*
+* @param {*} value - penalty value
+* @returns {(string|null)} penalty string or null
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+*
+* var v = resolve( str2enum( 'l1' ) );
+* // returns 'l1'
+*/
+function resolve( value ) {
+	var t = ( typeof value );
+	if ( t === 'string' ) {
+		return ( str2enum( value ) === null ) ? null : value;
+	}
+	if ( t === 'number' ) {
+		return enum2str( value );
+	}
+	return null;
+}
+
+
+// EXPORTS //
+
+module.exports = resolve;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/package.json b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/package.json
new file mode 100644
index 000000000000..1dfb81fc8955
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/penalty-resolve-str",
+  "version": "0.0.0",
+  "description": "Return the penalty string associated with a supported SGD penalty value.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "penalty",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/test/test.js
new file mode 100644
index 000000000000..ce85b3064115
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-resolve-str/test/test.js
@@ -0,0 +1,75 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+var resolve = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'elasticnet',
+	'l1',
+	'l2'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof resolve, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the string associated with an SGD penalty value', function test( t ) {
+	var v;
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		v = str2enum( VALUES[ i ] );
+		t.strictEqual( resolve( VALUES[ i ] ), VALUES[ i ], 'returns expected value' );
+		t.strictEqual( resolve( v ), VALUES[ i ], 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve a string', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'beep',
+		'boop',
+		'foo',
+		'bar',
+		-99999999,
+		-9999999999,
+		-9999999999999,
+		true,
+		false
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( resolve( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/README.md b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/README.md
new file mode 100644
index 000000000000..0dcdb219aaeb
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/README.md
@@ -0,0 +1,119 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2026 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+# str2enum
+
+> Return the enumeration constant associated with an SGD penalty string.
+
+<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
+
+<section class="intro">
+
+</section>
+
+<!-- /.intro -->
+
+<!-- Package usage documentation. -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+```
+
+#### str2enum( penalty )
+
+Returns the enumeration constant associated with an SGD penalty string.
+
+```javascript
+var v = str2enum( 'l1' );
+// returns <number>
+```
+
+If unable to resolve an enumeration constant, the function returns `null`.
+
+```javascript
+var v = str2enum( 'beep' );
+// returns null
+```
+
+</section>
+
+<!-- /.usage -->
+
+<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="notes">
+
+## Notes
+
+-   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
+
+</section>
+
+<!-- /.notes -->
+
+<!-- Package usage examples. -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+
+var v = str2enum( 'l1' );
+// returns <number>
+
+v = str2enum( 'elasticnet' );
+// returns <number>
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/benchmark/benchmark.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/benchmark/benchmark.js
new file mode 100644
index 000000000000..d85a6826abf0
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/benchmark/benchmark.js
@@ -0,0 +1,56 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var isInteger = require( '@stdlib/assert/is-integer' ).isPrimitive;
+var pkg = require( './../package.json' ).name;
+var str2enum = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg, function benchmark( b ) {
+	var values;
+	var out;
+	var i;
+
+	values = [
+		'elasticnet',
+		'l1',
+		'l2',
+		'none'
+	];
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		out = str2enum( values[ i%values.length ] );
+		if ( typeof out !== 'number' ) {
+			b.fail( 'should return a number' );
+		}
+	}
+	b.toc();
+	if ( !isInteger( out ) ) {
+		b.fail( 'should return an integer' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/docs/repl.txt
new file mode 100644
index 000000000000..4910b3d075f2
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/docs/repl.txt
@@ -0,0 +1,26 @@
+
+{{alias}}( penalty )
+    Returns the enumeration constant associated with an SGD penalty string.
+
+    Downstream consumers of this function should *not* rely on specific integer
+    values (e.g., `ELASTICNET == 0`). Instead, the function should be used in
+    an opaque manner.
+
+    Parameters
+    ----------
+    penalty: string
+        Penalty.
+
+    Returns
+    -------
+    out: integer|null
+        Enumeration constant.
+
+    Examples
+    --------
+    > var out = {{alias}}( 'l1' )
+    <number>
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/docs/types/index.d.ts b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/docs/types/index.d.ts
new file mode 100644
index 000000000000..7517c21d82bd
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/docs/types/index.d.ts
@@ -0,0 +1,40 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Returns the enumeration constant associated with an SGD penalty string.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param penalty - penalty string
+* @returns enumeration constant
+*
+* @example
+* var v = str2enum( 'l1' );
+* // returns <number>
+*/
+declare function str2enum( penalty: string ): number | null;
+
+
+// EXPORTS //
+
+export = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/docs/types/test.ts b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/docs/types/test.ts
new file mode 100644
index 000000000000..29e7ee6f3a1a
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/docs/types/test.ts
@@ -0,0 +1,39 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import str2enum = require( './index' );
+
+
+// TESTS //
+
+// The function returns a number or null...
+{
+	str2enum( 'l1' ); // $ExpectType number | null
+}
+
+// The compiler throws an error if not provided a string...
+{
+	str2enum( 10 ); // $ExpectError
+	str2enum( true ); // $ExpectError
+	str2enum( false ); // $ExpectError
+	str2enum( null ); // $ExpectError
+	str2enum( undefined ); // $ExpectError
+	str2enum( [] ); // $ExpectError
+	str2enum( {} ); // $ExpectError
+	str2enum( ( x: number ): number => x ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/examples/index.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/examples/index.js
new file mode 100644
index 000000000000..faaa6bb8a440
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/examples/index.js
@@ -0,0 +1,29 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var str2enum = require( './../lib' );
+
+var v = str2enum( 'l1' );
+console.log( v );
+// => <number>
+
+v = str2enum( 'elasticnet' );
+console.log( v );
+// => <number>
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/lib/index.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/lib/index.js
new file mode 100644
index 000000000000..6f8e2b029813
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/lib/index.js
@@ -0,0 +1,40 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Return the enumeration constant associated with an SGD penalty string.
+*
+* @module @stdlib/ml/base/sgd/penalty-str2enum
+*
+* @example
+* var str2enum = require( '@stdlib/ml/base/sgd/penalty-str2enum' );
+*
+* var v = str2enum( 'l1' );
+* // returns <number>
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/lib/main.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/lib/main.js
new file mode 100644
index 000000000000..49ebdb809813
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/lib/main.js
@@ -0,0 +1,56 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
+var enumeration = require( '@stdlib/ml/base/sgd/penalties' ).enum;
+
+
+// VARIABLES //
+
+var ENUM = enumeration();
+
+
+// MAIN //
+
+/**
+* Returns the enumeration constant associated with an SGD penalty string.
+*
+* ## Notes
+*
+* -   Downstream consumers of this function should **not** rely on specific integer values (e.g., `ELASTICNET == 0`). Instead, the function should be used in an opaque manner.
+*
+* @param {string} penalty - penalty string
+* @returns {(integer|null)} integer value or null
+*
+* @example
+* var v = str2enum( 'l1' );
+* // returns <number>
+*/
+function str2enum( penalty ) {
+	var v = ENUM[ penalty ];
+	return ( isNumber( v ) ) ? v : null; // note: we include this guard to prevent walking the prototype chain
+}
+
+
+// EXPORTS //
+
+module.exports = str2enum;
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/package.json b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/package.json
new file mode 100644
index 000000000000..cad4a2a4d8c6
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@stdlib/ml/base/sgd/penalty-str2enum",
+  "version": "0.0.0",
+  "description": "Return the enumeration constant associated with an SGD penalty string.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "ml",
+    "machine",
+    "learning",
+    "sgd",
+    "penalty",
+    "utilities",
+    "utility",
+    "utils",
+    "util",
+    "enum"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/test/test.js b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/test/test.js
new file mode 100644
index 000000000000..49fb0611f66d
--- /dev/null
+++ b/lib/node_modules/@stdlib/ml/base/sgd/penalty-str2enum/test/test.js
@@ -0,0 +1,68 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var enum2str = require( '@stdlib/ml/base/sgd/penalty-enum2str' );
+var str2enum = require( './../lib' );
+
+
+// VARIABLES //
+
+var VALUES = [
+	'elasticnet',
+	'l1',
+	'l2',
+	'none'
+];
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof str2enum, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns the enumeration constant associated with a string', function test( t ) {
+	var i;
+	for ( i = 0; i < VALUES.length; i++ ) {
+		t.strictEqual( enum2str( str2enum( VALUES[ i ] ) ), VALUES[ i ], 'returns expected value' );
+	}
+	t.end();
+});
+
+tape( 'the function returns `null` if unable to resolve an enumeration constant', function test( t ) {
+	var values;
+	var i;
+
+	values = [
+		'beep',
+		'boop',
+		'foo',
+		'bar'
+	];
+	for ( i = 0; i < values.length; i++ ) {
+		t.strictEqual( str2enum( values[ i ] ), null, 'returns expected value' );
+	}
+	t.end();
+});

From 95194d8bbbcf1e38a8eec503897125dbb789a80f Mon Sep 17 00:00:00 2001
From: Athan <kgryte@gmail.com>
Date: Mon, 3 Aug 2026 03:00:37 -0700
Subject: [PATCH 3/3] style: reformat examples

Co-authored-by: Athan <kgryte@gmail.com>
Signed-off-by: Athan <kgryte@gmail.com>
---
 .../ml/base/sgd/learning-rate-enum2str/docs/repl.txt        | 4 ++--
 .../ml/base/sgd/learning-rate-resolve-enum/docs/repl.txt    | 4 ++--
 .../ml/base/sgd/learning-rate-resolve-str/docs/repl.txt     | 4 ++--
 .../ml/base/sgd/loss-function-enum2str/docs/repl.txt        | 6 +++---
 .../ml/base/sgd/loss-function-resolve-enum/docs/repl.txt    | 6 +++---
 .../ml/base/sgd/loss-function-resolve-str/docs/repl.txt     | 4 ++--
 6 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/repl.txt
index 98a6ccf480fe..800d0d912feb 100644
--- a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/repl.txt
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-enum2str/docs/repl.txt
@@ -15,8 +15,8 @@
 
     Examples
     --------
-    > var out = {{alias}}(
-    ... {{alias:@stdlib/ml/base/sgd/learning-rate-str2enum}}( 'basic' ) )
+    > var v = {{alias:@stdlib/ml/base/sgd/learning-rate-str2enum}}( 'basic' );
+    > var out = {{alias}}( v )
     'basic'
 
     See Also
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/repl.txt
index 7dedfd9dca49..ab0b0e379ecd 100644
--- a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/repl.txt
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-enum/docs/repl.txt
@@ -21,8 +21,8 @@
     --------
     > var out = {{alias}}( 'basic' )
     <number>
-    > out = {{alias}}( {{alias:@stdlib/ml/base/sgd/learning-rate-str2enum}}(
-    ... 'basic' ) )
+    > var v = {{alias:@stdlib/ml/base/sgd/learning-rate-str2enum}}( 'basic' );
+    > out = {{alias}}( v )
     <number>
 
     See Also
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/repl.txt
index 6350c05bc737..6b71bf6e211c 100644
--- a/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/repl.txt
+++ b/lib/node_modules/@stdlib/ml/base/sgd/learning-rate-resolve-str/docs/repl.txt
@@ -17,8 +17,8 @@
     --------
     > var out = {{alias}}( 'constant' )
     'constant'
-    > out = {{alias}}( {{alias:@stdlib/ml/base/sgd/learning-rate-str2enum}}(
-    ... 'constant' ) )
+    > var v = {{alias:@stdlib/ml/base/sgd/learning-rate-str2enum}}( 'constant' );
+    > out = {{alias}}( v )
     'constant'
 
     See Also
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/repl.txt
index 2a18d50b834d..25f4090d7d01 100644
--- a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/repl.txt
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-enum2str/docs/repl.txt
@@ -15,9 +15,9 @@
 
     Examples
     --------
-    > var out = {{alias}}(
-    ... {{alias:@stdlib/ml/base/sgd/loss-function-str2enum}}(
-    ... 'epsilon-insensitive' ) )
+    > var str = 'epsilon-insensitive';
+    > var v = {{alias:@stdlib/ml/base/sgd/loss-function-str2enum}}( str );
+    > var out = {{alias}}( v )
     'epsilon-insensitive'
 
     See Also
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/repl.txt
index 8b3e588d247d..0a44f3962615 100644
--- a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/repl.txt
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-enum/docs/repl.txt
@@ -21,9 +21,9 @@
     --------
     > var out = {{alias}}( 'epsilon-insensitive' )
     <number>
-    > out = {{alias}}(
-    ... {{alias:@stdlib/ml/base/sgd/loss-function-str2enum}}(
-    ... 'epsilon-insensitive' ) )
+    > var str = 'epsilon-insensitive';
+    > var v = {{alias:@stdlib/ml/base/sgd/loss-function-str2enum}}( str );
+    > out = {{alias}}( v )
     <number>
 
     See Also
diff --git a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/repl.txt b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/repl.txt
index d779dc625997..94315d5d2dc7 100644
--- a/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/repl.txt
+++ b/lib/node_modules/@stdlib/ml/base/sgd/loss-function-resolve-str/docs/repl.txt
@@ -17,8 +17,8 @@
     --------
     > var out = {{alias}}( 'hinge' )
     'hinge'
-    > out = {{alias}}( {{alias:@stdlib/ml/base/sgd/loss-function-str2enum}}(
-    ... 'hinge' ) )
+    > var v = {{alias:@stdlib/ml/base/sgd/loss-function-str2enum}}( 'hinge' );
+    > out = {{alias}}( v )
     'hinge'
 
     See Also