Package ai.sklearn4j.core.libraries.numpy

Class NumpyArrayOperationWithAxisReduction<InputType,OutputType>

java.lang.Object

ai.sklearn4j.core.libraries.numpy.NumpyArrayOperationWithAxisReduction<InputType,OutputType>

Type Parameters:

InputType - The element type of the input numpy array.

OutputType - The element type of the output numpy array.

public abstract class NumpyArrayOperationWithAxisReduction<InputType,OutputType>
extends Object

Base class for all the operations that performs an aggregation and reduction on a given NumpyArray.

Constructor Summary

Constructors

Constructor	Description
NumpyArrayOperationWithAxisReduction()

Method Summary

Modifier and Type	Method	Description
NumpyArray<OutputType>	apply(NumpyArray<InputType> array, int axis, boolean keepDimensions)	Applies the operation on the numpy array.
NumpyArray<OutputType>	createInstanceResultNumpyArray(int[] shape)	Instantiate the result numpy array.
abstract Object	reduceAxisValues(Object[] valuesInAxis)	The core operation that does the aggregation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NumpyArrayOperationWithAxisReduction

public NumpyArrayOperationWithAxisReduction()

Method Detail

apply

public NumpyArray<OutputType> apply(NumpyArray<InputType> array,
                                    int axis,
                                    boolean keepDimensions)

Applies the operation on the numpy array.

Parameters:

array - Input array to perform operation on.

axis - The axis that should be reduced on.

keepDimensions - A flag indicating to keep the same number of dimension as the input.

Returns:

The numpy array that contains the result of the reduction.

createInstanceResultNumpyArray

public NumpyArray<OutputType> createInstanceResultNumpyArray(int[] shape)

Instantiate the result numpy array.

Parameters:

shape - The shape of the desired array.

Returns:

An empty array with the desired specifications.

reduceAxisValues

public abstract Object reduceAxisValues(Object[] valuesInAxis)

The core operation that does the aggregation.

Parameters:

valuesInAxis - The elements of the specified axis.

Returns:

The aggregated value.