LabelEncoder (scikit-learn 4 JVM 0.0.4 API)

java.lang.Object
- ai.sklearn4j.base.TransformerMixin<List<Object>,NumpyArray<Long>>
- - ai.sklearn4j.preprocessing.label.LabelEncoder

```
public class LabelEncoder
extends TransformerMixin<List<Object>,NumpyArray<Long>>
```
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`.

Constructor Summary

Constructors
Constructor Description

LabelEncoder()
Instantiate a new object of LabelEncoder.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`List<Object>`	`getClasses()`	Gets the label for each class.
`List<Object>`	`inverseTransform(NumpyArray<Long> array)`	Takes a transformed array and reveres the transformation.
`void`	`setClasses(List<Object> value)`	Sets the label for each class.
`NumpyArray<Long>`	`transform(List<Object> array)`	Transform labels to normalized encoding.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - LabelEncoder
```
public LabelEncoder()
```
    Instantiate a new object of LabelEncoder.
- Method Detail
  - setClasses
```
public void setClasses(List<Object> value)
```
    Sets the label for each class. * @param value The new value for classes.
  - getClasses
```
public List<Object> getClasses()
```
    Gets the label for each class.
  - transform
```
public NumpyArray<Long> transform(List<Object> array)
```
    Transform labels to normalized encoding.
    
    Specified by:
    
    transform in class TransformerMixin<List<Object>,NumpyArray<Long>>
    
    Parameters:
    
    array - array-like of shape (n_samples,) Target values.
    
    Returns:
    
    array-like of shape (n_samples,) Labels as normalized encodings.
  - inverseTransform
```
public List<Object> inverseTransform(NumpyArray<Long> array)
```
    Takes a transformed array and reveres the transformation.
    
    Specified by:
    
    inverseTransform in class TransformerMixin<List<Object>,NumpyArray<Long>>
    
    Parameters:
    
    array - The array to apply reveres transform.
    
    Returns:
    
    The inversed transform of array.