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About stdlib...

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ternary2d

NPM version Build Status Coverage Status

Apply a ternary callback to elements in three two-dimensional nested input arrays and assign results to elements in a two-dimensional nested output array.

Usage

import ternary2d from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-base-ternary2d@esm/index.mjs';

ternary2d( arrays, shape, fcn )

Applies a ternary callback to elements in three two-dimensional nested input arrays and assigns results to elements in a two-dimensional nested output array.

import add from 'https://cdn.jsdelivr.net/gh/stdlib-js/math-base-ops-add3@esm/index.mjs';
import zeros2d from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-base-zeros2d@esm/index.mjs';

var x = [ [ 1.0, 2.0 ], [ 3.0, 4.0 ] ];
var out = zeros2d( [ 2, 2 ] );

var shape = [ 2, 2 ];

ternary2d( [ x, x, x, out ], shape, add );
// out => [ [ 3.0, 6.0 ], [ 9.0, 12.0 ] ]

The function accepts the following arguments:

  • arrays: array-like object containing three input nested arrays and one output nested array.
  • shape: array shape.
  • fcn: ternary function to apply.

Notes

  • The function assumes that the input and output arrays have the same shape.

Examples

<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">

var discreteUniform = require( 'https://cdn.jsdelivr.net/gh/stdlib-js/random-base-discrete-uniform' ).factory;
import filled2dBy from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-base-filled2d-by@esm/index.mjs';
import zeros2d from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-base-zeros2d@esm/index.mjs';
import add from 'https://cdn.jsdelivr.net/gh/stdlib-js/math-base-ops-add3@esm/index.mjs';
import ternary2d from 'https://cdn.jsdelivr.net/gh/stdlib-js/array-base-ternary2d@esm/index.mjs';

var shape = [ 3, 3 ];

var x = filled2dBy( shape, discreteUniform( -100, 100 ) );
console.log( x );

var y = filled2dBy( shape, discreteUniform( -100, 100 ) );
console.log( y );

var z = filled2dBy( shape, discreteUniform( -100, 100 ) );
console.log( z );

var out = zeros2d( shape );
console.log( out );

ternary2d( [ x, y, z, out ], shape, add );
console.log( out );

</script>
</body>
</html>

Notice

This package is part of stdlib, a standard library with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

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License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.