MultiLabelBinarizer

Transform between iterable of iterables and a multilabel format.

Although a list of sets or tuples is a very intuitive format for multilabel data, it is unwieldy to process. This transformer converts between this intuitive format and the supported multilabel format: a (samples x classes) binary matrix indicating the presence of a class label.

Python Reference (opens in a new tab)

Constructors

constructor()

Signature

new MultiLabelBinarizer(opts?: object): MultiLabelBinarizer;

Parameters

Name	Type	Description
`opts?`	`object`	-
`opts.classes?`	`ArrayLike`	Indicates an ordering for the class labels. All entries should be unique (cannot contain duplicate classes).
`opts.sparse_output?`	`boolean`	Set to `true` if output binary array is desired in CSR sparse format. `Default Value` `false`

Returns

MultiLabelBinarizer

Defined in: generated/preprocessing/MultiLabelBinarizer.ts:23 (opens in a new tab)

Methods

dispose()

Disposes of the underlying Python resources.

Once dispose() is called, the instance is no longer usable.

Signature

dispose(): Promise<void>;

Returns

Promise<void>

Defined in: generated/preprocessing/MultiLabelBinarizer.ts:99 (opens in a new tab)

fit()

Fit the label sets binarizer, storing classes_.

Signature

fit(opts: object): Promise<any>;

Parameters

Name	Type	Description
`opts`	`object`	-
`opts.y?`	`any`	A set of labels (any orderable and hashable object) for each sample. If the `classes` parameter is set, `y` will not be iterated.

Returns

Promise<any>

Defined in: generated/preprocessing/MultiLabelBinarizer.ts:116 (opens in a new tab)

fit_transform()

Fit the label sets binarizer and transform the given label sets.

Signature

fit_transform(opts: object): Promise<ArrayLike>;

Parameters

Name	Type	Description
`opts`	`object`	-
`opts.y?`	`any`	A set of labels (any orderable and hashable object) for each sample. If the `classes` parameter is set, `y` will not be iterated.

Returns

Promise<ArrayLike>

Defined in: generated/preprocessing/MultiLabelBinarizer.ts:151 (opens in a new tab)

get_metadata_routing()

Get metadata routing of this object.

Please check User Guide on how the routing mechanism works.

Signature

get_metadata_routing(opts: object): Promise<any>;

Parameters

Name	Type	Description
`opts`	`object`	-
`opts.routing?`	`any`	A `MetadataRequest` encapsulating routing information.

Returns

Promise<any>

Defined in: generated/preprocessing/MultiLabelBinarizer.ts:190 (opens in a new tab)

init()

Initializes the underlying Python resources.

This instance is not usable until the Promise returned by init() resolves.

Signature

init(py: PythonBridge): Promise<void>;

Parameters

Name	Type
`py`	`PythonBridge`

Returns

Promise<void>

Defined in: generated/preprocessing/MultiLabelBinarizer.ts:53 (opens in a new tab)

inverse_transform()

Transform the given indicator matrix into label sets.

Signature

inverse_transform(opts: object): Promise<any>;

Parameters

Name	Type	Description
`opts`	`object`	-
`opts.yt?`	`ArrayLike`	A matrix containing only 1s ands 0s.

Returns

Promise<any>

Defined in: generated/preprocessing/MultiLabelBinarizer.ts:228 (opens in a new tab)

set_output()

Set output container.

See Introducing the set_output API for an example on how to use the API.

Signature

set_output(opts: object): Promise<any>;

Parameters

Name	Type	Description
`opts`	`object`	-
`opts.transform?`	`"default"` \| `"pandas"`	Configure output of `transform` and `fit\_transform`.

Returns

Promise<any>

Defined in: generated/preprocessing/MultiLabelBinarizer.ts:268 (opens in a new tab)

transform()

Transform the given label sets.

Signature

transform(opts: object): Promise<any>;

Parameters

Name	Type	Description
`opts`	`object`	-
`opts.y?`	`any`	A set of labels (any orderable and hashable object) for each sample. If the `classes` parameter is set, `y` will not be iterated.