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PredefinedSplit.ts
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PredefinedSplit.ts
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/* eslint-disable */
/* NOTE: This file is auto-generated. Do not edit it directly. */
import crypto from 'node:crypto'
import { PythonBridge, NDArray, ArrayLike, SparseMatrix } from '@/sklearn/types'
/**
Predefined split cross-validator
Provides train/test indices to split data into train/test sets using a predefined scheme specified by the user with the `test\_fold` parameter.
Read more in the [User Guide](../cross_validation.html#predefined-split).
[Python Reference](https://scikit-learn.org/stable/modules/generated/sklearn.model_selection.PredefinedSplit.html)
*/
export class PredefinedSplit {
id: string
opts: any
_py: PythonBridge
_isInitialized: boolean = false
_isDisposed: boolean = false
constructor(opts?: {
/**
The entry `test\_fold\[i\]` represents the index of the test set that sample `i` belongs to. It is possible to exclude sample `i` from any test set (i.e. include sample `i` in every training set) by setting `test\_fold\[i\]` equal to -1.
*/
test_fold?: ArrayLike
}) {
this.id = `PredefinedSplit${crypto.randomUUID().split('-')[0]}`
this.opts = opts || {}
}
get py(): PythonBridge {
return this._py
}
set py(pythonBridge: PythonBridge) {
this._py = pythonBridge
}
/**
Initializes the underlying Python resources.
This instance is not usable until the `Promise` returned by `init()` resolves.
*/
async init(py: PythonBridge): Promise<void> {
if (this._isDisposed) {
throw new Error('This PredefinedSplit instance has already been disposed')
}
if (this._isInitialized) {
return
}
if (!py) {
throw new Error('PredefinedSplit.init requires a PythonBridge instance')
}
this._py = py
await this._py.ex`
import numpy as np
from sklearn.model_selection import PredefinedSplit
try: bridgePredefinedSplit
except NameError: bridgePredefinedSplit = {}
`
// set up constructor params
await this._py.ex`ctor_PredefinedSplit = {'test_fold': np.array(${
this.opts['test_fold'] ?? undefined
}) if ${this.opts['test_fold'] !== undefined} else None}
ctor_PredefinedSplit = {k: v for k, v in ctor_PredefinedSplit.items() if v is not None}`
await this._py
.ex`bridgePredefinedSplit[${this.id}] = PredefinedSplit(**ctor_PredefinedSplit)`
this._isInitialized = true
}
/**
Disposes of the underlying Python resources.
Once `dispose()` is called, the instance is no longer usable.
*/
async dispose() {
if (this._isDisposed) {
return
}
if (!this._isInitialized) {
return
}
await this._py.ex`del bridgePredefinedSplit[${this.id}]`
this._isDisposed = true
}
/**
Get metadata routing of this object.
Please check [User Guide](../../metadata_routing.html#metadata-routing) on how the routing mechanism works.
*/
async get_metadata_routing(opts: {
/**
A [`MetadataRequest`](sklearn.utils.metadata_routing.MetadataRequest.html#sklearn.utils.metadata_routing.MetadataRequest "sklearn.utils.metadata_routing.MetadataRequest") encapsulating routing information.
*/
routing?: any
}): Promise<any> {
if (this._isDisposed) {
throw new Error('This PredefinedSplit instance has already been disposed')
}
if (!this._isInitialized) {
throw new Error(
'PredefinedSplit must call init() before get_metadata_routing()'
)
}
// set up method params
await this._py.ex`pms_PredefinedSplit_get_metadata_routing = {'routing': ${
opts['routing'] ?? undefined
}}
pms_PredefinedSplit_get_metadata_routing = {k: v for k, v in pms_PredefinedSplit_get_metadata_routing.items() if v is not None}`
// invoke method
await this._py
.ex`res_PredefinedSplit_get_metadata_routing = bridgePredefinedSplit[${this.id}].get_metadata_routing(**pms_PredefinedSplit_get_metadata_routing)`
// convert the result from python to node.js
return this
._py`res_PredefinedSplit_get_metadata_routing.tolist() if hasattr(res_PredefinedSplit_get_metadata_routing, 'tolist') else res_PredefinedSplit_get_metadata_routing`
}
/**
Returns the number of splitting iterations in the cross-validator
*/
async get_n_splits(opts: {
/**
Always ignored, exists for compatibility.
*/
X?: any
/**
Always ignored, exists for compatibility.
*/
y?: any
/**
Always ignored, exists for compatibility.
*/
groups?: any
}): Promise<number> {
if (this._isDisposed) {
throw new Error('This PredefinedSplit instance has already been disposed')
}
if (!this._isInitialized) {
throw new Error('PredefinedSplit must call init() before get_n_splits()')
}
// set up method params
await this._py.ex`pms_PredefinedSplit_get_n_splits = {'X': ${
opts['X'] ?? undefined
}, 'y': ${opts['y'] ?? undefined}, 'groups': ${opts['groups'] ?? undefined}}
pms_PredefinedSplit_get_n_splits = {k: v for k, v in pms_PredefinedSplit_get_n_splits.items() if v is not None}`
// invoke method
await this._py
.ex`res_PredefinedSplit_get_n_splits = bridgePredefinedSplit[${this.id}].get_n_splits(**pms_PredefinedSplit_get_n_splits)`
// convert the result from python to node.js
return this
._py`res_PredefinedSplit_get_n_splits.tolist() if hasattr(res_PredefinedSplit_get_n_splits, 'tolist') else res_PredefinedSplit_get_n_splits`
}
/**
Generate indices to split data into training and test set.
*/
async split(opts: {
/**
Always ignored, exists for compatibility.
*/
X?: any
/**
Always ignored, exists for compatibility.
*/
y?: any
/**
Always ignored, exists for compatibility.
*/
groups?: any
}): Promise<NDArray> {
if (this._isDisposed) {
throw new Error('This PredefinedSplit instance has already been disposed')
}
if (!this._isInitialized) {
throw new Error('PredefinedSplit must call init() before split()')
}
// set up method params
await this._py.ex`pms_PredefinedSplit_split = {'X': ${
opts['X'] ?? undefined
}, 'y': ${opts['y'] ?? undefined}, 'groups': ${opts['groups'] ?? undefined}}
pms_PredefinedSplit_split = {k: v for k, v in pms_PredefinedSplit_split.items() if v is not None}`
// invoke method
await this._py
.ex`res_PredefinedSplit_split = bridgePredefinedSplit[${this.id}].split(**pms_PredefinedSplit_split)`
// convert the result from python to node.js
return this
._py`res_PredefinedSplit_split.tolist() if hasattr(res_PredefinedSplit_split, 'tolist') else res_PredefinedSplit_split`
}
}