Class: LabelEncoder
Encode target labels with value between 0 and n_classes-1.
This transformer should be used to encode target values, i.e. y, and not the input X.
Read more in the User Guide.
Constructors
new LabelEncoder()
new LabelEncoder(
opts?):LabelEncoder
Parameters
| Parameter | Type | Description |
|---|---|---|
opts? | object | - |
opts.classes_? | ArrayLike | Holds the label for each class. |
Returns LabelEncoder
Defined in generated/preprocessing/LabelEncoder.ts:25
Properties
| Property | Type | Default value | Defined in |
|---|---|---|---|
_isDisposed | boolean | false | generated/preprocessing/LabelEncoder.ts:23 |
_isInitialized | boolean | false | generated/preprocessing/LabelEncoder.ts:22 |
_py | PythonBridge | undefined | generated/preprocessing/LabelEncoder.ts:21 |
id | string | undefined | generated/preprocessing/LabelEncoder.ts:18 |
opts | any | undefined | generated/preprocessing/LabelEncoder.ts:19 |
Accessors
py
Get Signature
get py():
PythonBridge
Returns PythonBridge
Set Signature
set py(
pythonBridge):void
Parameters
| Parameter | Type |
|---|---|
pythonBridge | PythonBridge |
Returns void
Defined in generated/preprocessing/LabelEncoder.ts:35
Methods
dispose()
dispose():
Promise<void>
Disposes of the underlying Python resources.
Once dispose() is called, the instance is no longer usable.
Returns Promise<void>
Defined in generated/preprocessing/LabelEncoder.ts:87
fit()
fit(
opts):Promise<any>
Fit label encoder.
Parameters
| Parameter | Type | Description |
|---|---|---|
opts | object | - |
opts.y? | ArrayLike | Target values. |
Returns Promise<any>
Defined in generated/preprocessing/LabelEncoder.ts:104
fit_transform()
fit_transform(
opts):Promise<ArrayLike>
Fit label encoder and return encoded labels.
Parameters
| Parameter | Type | Description |
|---|---|---|
opts | object | - |
opts.y? | ArrayLike | Target values. |
Returns Promise<ArrayLike>
Defined in generated/preprocessing/LabelEncoder.ts:136
get_metadata_routing()
get_metadata_routing(
opts):Promise<any>
Get metadata routing of this object.
Please check User Guide on how the routing mechanism works.
Parameters
| Parameter | Type | Description |
|---|---|---|
opts | object | - |
opts.routing? | any | A MetadataRequest encapsulating routing information. |
Returns Promise<any>
Defined in generated/preprocessing/LabelEncoder.ts:170
init()
init(
py):Promise<void>
Initializes the underlying Python resources.
This instance is not usable until the Promise returned by init() resolves.
Parameters
| Parameter | Type |
|---|---|
py | PythonBridge |
Returns Promise<void>
Defined in generated/preprocessing/LabelEncoder.ts:48
inverse_transform()
inverse_transform(
opts):Promise<ArrayLike>
Transform labels back to original encoding.
Parameters
| Parameter | Type | Description |
|---|---|---|
opts | object | - |
opts.y? | ArrayLike | Target values. |
Returns Promise<ArrayLike>
Defined in generated/preprocessing/LabelEncoder.ts:204
set_output()
set_output(
opts):Promise<any>
Set output container.
See Introducing the set_output API for an example on how to use the API.
Parameters
| Parameter | Type | Description |
|---|---|---|
opts | object | - |
opts.transform? | "default" | "pandas" | "polars" | Configure output of transform and fit_transform. |
Returns Promise<any>
Defined in generated/preprocessing/LabelEncoder.ts:240
transform()
transform(
opts):Promise<ArrayLike>
Transform labels to normalized encoding.
Parameters
| Parameter | Type | Description |
|---|---|---|
opts | object | - |
opts.y? | ArrayLike | Target values. |
Returns Promise<ArrayLike>
Defined in generated/preprocessing/LabelEncoder.ts:272