org.shared.array.sparse

Class RealSparseArray

java.lang.Object

org.shared.array.sparse.ProtoSparseArray<RealSparseArray,double[],Double,RealArray>

org.shared.array.sparse.RealSparseArray

All Implemented Interfaces:

Cloneable, Array<RealSparseArray,Double>

public class RealSparseArray
extends ProtoSparseArray<RealSparseArray,double[],Double,RealArray>

A sparse real array class.

Nested Class Summary

Nested classes/interfaces inherited from interface org.shared.array.Array

Array.IndexingOrder

Field Summary

Fields

Modifier and Type	Field and Description
protected static double[]	empty An empty array.

Fields inherited from class org.shared.array.sparse.ProtoSparseArray

dimOffsets, dims, emptyIndices, state, strides

Constructor Summary

Constructors

Modifier	Constructor and Description
	RealSparseArray(int... dims) Default constructor.
protected	RealSparseArray(int unused, int[] dims) Internal constructor with a distinctive signature.
	RealSparseArray(RealSparseArray array) Alternate constructor.
protected	RealSparseArray(SparseArrayState<double[]> state, int[] dims, int[] strides, int[] dimOffsets) Internal constructor for package use only.

Method Summary

Methods

Modifier and Type	Method and Description
protected double[]	empty() Gets an empty array of values.
Class<Double>	getComponentType() Gets the component type.
protected int	length(double[] values) Gets the length of the given array.
RealArray	toDense() Converts this array to its dense form.
String	toString() Creates a human-readable representation of this array.
protected RealSparseArray	wrap(Double value, int[] dims, int[] strides, int[] dimOffsets) Allocates a new array initialized to the given value.
protected RealSparseArray	wrap(SparseArrayState<double[]> state, int[] dims, int[] strides, int[] dimOffsets) Allocates a new array.

Methods inherited from class org.shared.array.sparse.ProtoSparseArray

clone, concat, createDimensionOffsets, dims, insert, map, nDims, order, reshape, reverse, reverseOrder, shift, size, size, slice, slice, slice, slice, splice, stride, strides, subarray, tile, transpose

Methods inherited from class java.lang.Object

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

Field Detail

empty

protected static final double[] empty

An empty array.

Constructor Detail

RealSparseArray

public RealSparseArray(int... dims)

Default constructor.

RealSparseArray

protected RealSparseArray(int unused,
               int[] dims)

Internal constructor with a distinctive signature.

RealSparseArray

public RealSparseArray(RealSparseArray array)

Alternate constructor.

RealSparseArray

protected RealSparseArray(SparseArrayState<double[]> state,
               int[] dims,
               int[] strides,
               int[] dimOffsets)

Internal constructor for package use only.

Method Detail

getComponentType

public Class<Double> getComponentType()

Description copied from interface: Array

Gets the component type.

wrap

protected RealSparseArray wrap(Double value,
                   int[] dims,
                   int[] strides,
                   int[] dimOffsets)

Description copied from class: ProtoSparseArray

Allocates a new array initialized to the given value.

Specified by:

wrap in class ProtoSparseArray<RealSparseArray,double[],Double,RealArray>

Parameters:

value - the initial value.

dims - the dimensions.

strides - the strides.

dimOffsets - the dimension offsets.

Returns:

the new array.

wrap

protected RealSparseArray wrap(SparseArrayState<double[]> state,
                   int[] dims,
                   int[] strides,
                   int[] dimOffsets)

Description copied from class: ProtoSparseArray

Allocates a new array.

Specified by:

wrap in class ProtoSparseArray<RealSparseArray,double[],Double,RealArray>

Parameters:

state - the SparseArrayState.

dims - the dimensions.

strides - the strides.

dimOffsets - the dimension offsets.

Returns:

the new array.

length

protected int length(double[] values)

Description copied from class: ProtoSparseArray

Gets the length of the given array.

Specified by:

length in class ProtoSparseArray<RealSparseArray,double[],Double,RealArray>

Parameters:

values - the array.

Returns:

the length.

empty

protected double[] empty()

Description copied from class: ProtoSparseArray

Gets an empty array of values.

Specified by:

empty in class ProtoSparseArray<RealSparseArray,double[],Double,RealArray>

toDense

public RealArray toDense()

Description copied from class: ProtoSparseArray

Converts this array to its dense form.

Specified by:

toDense in class ProtoSparseArray<RealSparseArray,double[],Double,RealArray>

toString

public String toString()

Description copied from interface: Array

Creates a human-readable representation of this array.

Specified by:

toString in interface Array<RealSparseArray,Double>

Overrides:

toString in class Object