org.nd4j.linalg.api.ndarray

Class BaseSparseNDArrayCOO

java.lang.Object

org.nd4j.linalg.api.ndarray.BaseSparseNDArray

org.nd4j.linalg.api.ndarray.BaseSparseNDArrayCOO

All Implemented Interfaces:

Serializable, INDArray, ISparseNDArray

public class BaseSparseNDArrayCOO
extends BaseSparseNDArray

Author:

Audrey Loeffel

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected static SparseFormat	format
protected DataBuffer	indices
protected boolean	isSorted
protected DataBuffer	values

Fields inherited from class org.nd4j.linalg.api.ndarray.BaseSparseNDArray

columns, isMatrix, isScalar, isSparse, isVector, javaShapeInformation, length, rank, rows, shape, shapeInformation, sparseInformation, stride, THRESHOLD_MEMORY_ALLOCATION

Constructor Summary

Constructors

Constructor and Description
BaseSparseNDArrayCOO(DataBuffer values, DataBuffer indices, DataBuffer sparseInformation, int[] shape)
BaseSparseNDArrayCOO(DataBuffer values, DataBuffer indices, int[] shape)
BaseSparseNDArrayCOO(DataBuffer values, DataBuffer indices, long[] sparseOffsets, int[] flags, int[] hiddenDimensions, int underlyingRank, int[] shape)
BaseSparseNDArrayCOO(double[] values, int[][] indices, int[] shape)
BaseSparseNDArrayCOO(float[] values, int[][] indices, int[] shape)

Method Summary

Modifier and Type	Method and Description
void	addOrUpdate(int[] indexes, double value) Add a new element in the ndarray or update the value if there is already a non-null element at this position
INDArray	assign(INDArray arr) Assign all of the elements in the given ndarray to this ndarray
boolean	canInsert(DataBuffer buffer, int length) Return if there is enough allocated memory space to add data of a given length in the databuffer
INDArray	convertToDoubles()
INDArray	convertToFloats()
long	countNNZ() Count the number of value that are included in the ndarray (view) according to the sparse offsets and the shape
DataBuffer	data() Returns a linear double array representation of this ndarray
int[]	filterOutFixedDimensions(int[] flags, List<Integer> idx)
INDArray	get(INDArrayIndex... indexes) Returns a subset of this array based on the specified indexes
double	getDouble(int... indices) Get a double value at the specified indices.
double	getDouble(int i) Get the double value at the specified linear index in the array
double	getDouble(int i, int j) Get the double value at the specified indices.
float	getFloat(int i) Return the item at the linear index i
float	getFloat(int[] indices) Returns the elements at the the specified indices
float	getFloat(int i, int j) Return the item at row i column j Note that this is the same as calling getScalar(new int[]{i,j}
SparseFormat	getFormat() Return the sparse format (i.e COO, CSR, ...)
DataBuffer	getIncludedIndices() Return a copy of the indices included in the view.
DataBuffer	getIncludedValues() Return a copy of the values included in the array.
DataBuffer	getIndices()
DataBuffer	getIndicesOf(int i) Returns the indices of the element of the given index in the array context
int	getInt(int... indices) Get an integer value at the specified indices.
int	getNumHiddenDimension()
INDArray	getScalar(int... indices) Returns the elements at the the specified indices
DataBuffer	getUnderlyingIndices() Return the indices buffer
DataBuffer	getUnderlyingIndicesOf(int i) Returns the underlying indices of the element of the given index such as there really are in the original ndarray
DataBuffer	getUnderlyingValues() Return the values buffer
DataBuffer	getValues()
DataBuffer	getVectorCoordinates() Returns the indices of non-zero element of the vector
int	indexesBinarySearch(int lowerBound, int upperBound, int[] idx) Return the position of the idx array into the indexes buffer between the lower and upper bound.
boolean	isDimensionFixed(int i) Return if the dimension in argument is a fixed dimension.
boolean	isSorted()
boolean	isView() Returns true if this array is a view or not
boolean	isZero(int... indexes)
INDArray	mmul(INDArray other, INDArray result, MMulTranspose mMulTranspose) Perform an copy matrix multiplication
INDArray	mmul(INDArray other, MMulTranspose mMulTranspose)
INDArray	mmuli(INDArray other, INDArray result, MMulTranspose transpose)
INDArray	mmuli(INDArray other, MMulTranspose transpose)
INDArray	put(INDArrayIndex[] indices, INDArray element) Put the elements of the ndarray in to the specified indices
INDArray	put(INDArrayIndex[] indices, Number element) Put the elements of the ndarray in to the specified indices
INDArray	put(int[] indexes, INDArray element) Inserts the element at the specified index
INDArray	put(int i, INDArray element) Inserts the element at the specified index
INDArray	put(int i, int j, INDArray element) Inserts the element at the specified index
INDArray	put(int i, int j, Number element) Inserts the element at the specified index
INDArray	putColumn(int column, INDArray toPut) Insert a column in to this array Will throw an exception if this ndarray is not a matrix
INDArray	putiColumnVector(INDArray columnVector) In place assignment of a column vector
INDArray	putiRowVector(INDArray rowVector) in place assignment of row vector, to each row of this array
INDArray	putRow(int row, INDArray toPut) Insert a row in to this array Will throw an exception if this ndarray is not a matrix
INDArray	putScalar(int[] indexes, double value) Insert the item at the specified indices
INDArray	putScalar(int i, double value) Insert the number linearly in to the ndarray
INDArray	putScalar(int i, float value) Insert a scalar float at the specified index
INDArray	putScalar(int i, int value) Insert a scalar int at the specified index
INDArray	putScalar(int row, int col, double value) Insert the value at the specified indices, in a 2d (rank 2) NDArray Equivalent to INDArray.putScalar(int[], double) but avoids int[] creation
INDArray	putScalar(int dim0, int dim1, int dim2, double value) Insert the value at the specified indices, in a 3d (rank 3) NDArray Equivalent to INDArray.putScalar(int[], double) but avoids int[] creation
INDArray	putScalar(int dim0, int dim1, int dim2, int dim3, double value) Insert the value at the specified indices, in a 4d (rank 4) NDArray Equivalent to INDArray.putScalar(int[], double) but avoids int[] creation
INDArray	removeEntry(int idx) Remove an element of the ndarray
int	reverseIndexes(int... indexes) Return the index of the value corresponding to the indexes
DataBuffer	shapeInfoDataBuffer() Shape info
DataBuffer	shiftLeft(DataBuffer buffer, int from, int offset, long datalength)
void	sort() Sort the indexes and the values buffers
INDArray	subArray(long[] offsets, int[] shape, int[] stride)
INDArray	subArray(ShapeOffsetResolution resolution) Sub array based on the pre calculated shape,strides, offsets
INDArray	subArray(ShapeOffsetResolution resolution, ShapeOffsetResolution resolutionWithoutNewAxis)
INDArray	toDense() Converts the sparse ndarray into a dense one
int	toFlatArray(com.google.flatbuffers.FlatBufferBuilder builder) Add an INDArray to flatbuffers builder
int[]	translateToPhysical(int[] virtualIndexes) Translate the view index to the corresponding index of the original ndarray
int	underlyingRank()

Methods inherited from class org.nd4j.linalg.api.ndarray.BaseSparseNDArray

add, add, add, add, add, add, addColumnVector, addi, addi, addi, addi, addi, addi, addiColumnVector, addiRowVector, addRowVector, amax, amaxNumber, amean, ameanNumber, amin, aminNumber, argMax, assign, assignIf, broadcast, broadcast, checkDimensions, cleanup, clone, columns, cond, condi, cumsum, cumsumi, detach, dimShuffle, distance1, distance2, div, div, div, div, div, div, divColumnVector, divi, divi, divi, divi, divi, divi, diviColumnVector, diviRowVector, divRowVector, dup, dup, element, elementStride, elementWiseStride, entropy, entropyNumber, eps, eps, epsi, epsi, eq, eq, eqi, eqi, equals, equalsWithEps, flags, fmod, fmod, fmod, fmod, fmodi, fmodi, get, get, getColumn, getColumns, getDoubleUnsafe, getLeadingOnes, getPercentile, getRow, getRows, getScalar, getScalar, getTrailingOnes, getWhere, getWhere, gt, gt, gte, gtei, gti, gti, hiddenDimensions, index, init, innerMostStride, isAttached, isCleanedUp, isColumnVector, isColumnVectorOrScalar, isCompressed, isInScope, isMatrix, isRowVector, isRowVectorOrScalar, isScalar, isSparse, isSquare, isVector, isVectorOrScalar, isWrapAround, javaTensorAlongDimension, length, lengthLong, leverage, leverageOrDetach, leverageTo, leverageTo, linearIndex, linearView, linearViewColumnOrder, logEntropy, logEntropyNumber, lt, lt, lte, ltei, lti, lti, majorStride, markAsCompressed, match, match, max, maxComplex, maxNumber, mean, mean, meanComplex, meanNumber, median, medianNumber, migrate, migrate, min, minComplex, minNumber, mmul, mmul, mmuli, mmuli, mul, mul, mul, mul, mul, mul, mulColumnVector, muli, muli, muli, muli, muli, muli, muliColumnVector, muliRowVector, mulRowVector, neg, negi, neq, neq, neqi, neqi, nnz, norm1, norm1Complex, norm1Number, norm2, norm2Complex, norm2Number, normmax, normmaxComplex, normmaxNumber, offset, ordering, originalOffset, percentile, percentileNumber, permute, permutei, prod, prodComplex, prodNumber, put, put, putScalar, putScalar, putScalarUnsafe, putSlice, putWhere, putWhere, putWhere, putWhereWithMask, putWhereWithMask, rank, ravel, ravel, rdiv, rdiv, rdiv, rdiv, rdiv, rdiv, rdivColumnVector, rdivi, rdivi, rdivi, rdivi, rdivi, rdivi, rdiviColumnVector, rdiviRowVector, rdivRowVector, reallocate, remainder, remainder, remainder, remainder, remainderi, remainderi, repeat, replaceWhere, repmat, resetLinearView, reshape, reshape, reshape, reshape, rows, rsub, rsub, rsub, rsub, rsub, rsub, rsubColumnVector, rsubi, rsubi, rsubi, rsubi, rsubi, rsubi, rsubiColumnVector, rsubiRowVector, rsubRowVector, scan, secondaryStride, setData, setOrder, setShape, setShapeAndStride, setShapeInformation, setStride, setWrapAround, shannonEntropy, shannonEntropyNumber, shape, shapeInfo, shapeInfoToString, shapeOf, size, slice, slice, slices, sliceVectors, sparseInfoDataBuffer, sparseOffsets, squaredDistance, std, std, stdComplex, stdNumber, stdNumber, stride, stride, strideOf, sub, sub, sub, sub, sub, sub, subColumnVector, subi, subi, subi, subi, subi, subi, subiColumnVector, subiRowVector, subRowVector, sum, sum, sumComplex, sumNumber, swapAxes, tensorAlongDimension, tensorssAlongDimension, toDoubleMatrix, toDoubleVector, toFloatMatrix, toFloatVector, toIntMatrix, toIntVector, transpose, transposei, unsafeDuplication, unsafeDuplication, var, var, varComplex, varNumber, vectorAlongDimension, vectorsAlongDimension

Methods inherited from class java.lang.Object

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

Field Detail

format

protected static final SparseFormat format

values

protected transient volatile DataBuffer values

indices

protected transient volatile DataBuffer indices

isSorted

protected transient volatile boolean isSorted

Constructor Detail

BaseSparseNDArrayCOO

public BaseSparseNDArrayCOO(double[] values,
                            int[][] indices,
                            int[] shape)

BaseSparseNDArrayCOO

public BaseSparseNDArrayCOO(DataBuffer values,
                            DataBuffer indices,
                            int[] shape)

BaseSparseNDArrayCOO

public BaseSparseNDArrayCOO(float[] values,
                            int[][] indices,
                            int[] shape)

BaseSparseNDArrayCOO

public BaseSparseNDArrayCOO(DataBuffer values,
                            DataBuffer indices,
                            DataBuffer sparseInformation,
                            int[] shape)

BaseSparseNDArrayCOO

public BaseSparseNDArrayCOO(DataBuffer values,
                            DataBuffer indices,
                            long[] sparseOffsets,
                            int[] flags,
                            int[] hiddenDimensions,
                            int underlyingRank,
                            int[] shape)

Method Detail

toFlatArray

public int toFlatArray(com.google.flatbuffers.FlatBufferBuilder builder)

Description copied from interface: INDArray

Add an INDArray to flatbuffers builder

Parameters:

builder - the builder to use

Returns:

the offset to add

countNNZ

public long countNNZ()

Count the number of value that are included in the ndarray (view) according to the sparse offsets and the shape

Returns:

nnz

assign

public INDArray assign(INDArray arr)

Description copied from interface: INDArray

Assign all of the elements in the given ndarray to this ndarray

Specified by:

assign in interface INDArray

Overrides:

assign in class BaseSparseNDArray

Parameters:

arr - the elements to assign

Returns:

this

sort

public void sort()

Sort the indexes and the values buffers

translateToPhysical

public int[] translateToPhysical(int[] virtualIndexes)

Translate the view index to the corresponding index of the original ndarray

Parameters:

virtualIndexes - the view indexes

Returns:

the original indexes

isDimensionFixed

public boolean isDimensionFixed(int i)

Return if the dimension in argument is a fixed dimension.

putScalar

public INDArray putScalar(int i,
                          double value)

Description copied from interface: INDArray

Insert the number linearly in to the ndarray

Specified by:

putScalar in interface INDArray

Overrides:

putScalar in class BaseSparseNDArray

Parameters:

i - the index to insert into

value - the value to insert

Returns:

this

putScalar

public INDArray putScalar(int i,
                          float value)

Description copied from interface: INDArray

Insert a scalar float at the specified index

Specified by:

putScalar in interface INDArray

Overrides:

putScalar in class BaseSparseNDArray

Parameters:

i - The index to insert into

value - Value to insert

Returns:

This array

putScalar

public INDArray putScalar(int i,
                          int value)

Description copied from interface: INDArray

Insert a scalar int at the specified index

Specified by:

putScalar in interface INDArray

Overrides:

putScalar in class BaseSparseNDArray

Parameters:

i - The index to insert into

value - Value to insert

Returns:

This array

putScalar

public INDArray putScalar(int[] indexes,
                          double value)

Description copied from interface: INDArray

Insert the item at the specified indices

Specified by:

putScalar in interface INDArray

Overrides:

putScalar in class BaseSparseNDArray

Parameters:

indexes - the indices to insert at

value - the number to insert

Returns:

this

putScalar

public INDArray putScalar(int row,
                          int col,
                          double value)

Description copied from interface: INDArray

Insert the value at the specified indices, in a 2d (rank 2) NDArray
Equivalent to INDArray.putScalar(int[], double) but avoids int[] creation

Specified by:

putScalar in interface INDArray

Overrides:

putScalar in class BaseSparseNDArray

Parameters:

row - Row (dimension 0) index

col - Column (dimension 1) index

value - Value to put

Returns:

This INDArray

putScalar

public INDArray putScalar(int dim0,
                          int dim1,
                          int dim2,
                          double value)

Description copied from interface: INDArray

Insert the value at the specified indices, in a 3d (rank 3) NDArray
Equivalent to INDArray.putScalar(int[], double) but avoids int[] creation

Specified by:

putScalar in interface INDArray

Overrides:

putScalar in class BaseSparseNDArray

Parameters:

dim0 - Dimension 0 index

dim1 - Dimension 1 index

dim2 - Dimension 2 index

value - Value to put

Returns:

This INDArray

putScalar

public INDArray putScalar(int dim0,
                          int dim1,
                          int dim2,
                          int dim3,
                          double value)

Description copied from interface: INDArray

Insert the value at the specified indices, in a 4d (rank 4) NDArray
Equivalent to INDArray.putScalar(int[], double) but avoids int[] creation

Specified by:

putScalar in interface INDArray

Overrides:

putScalar in class BaseSparseNDArray

Parameters:

dim0 - Dimension 0 index

dim1 - Dimension 1 index

dim2 - Dimension 2 index

dim3 - Dimension 3 index

value - Value to put

Returns:

This INDArray

putRow

public INDArray putRow(int row,
                       INDArray toPut)

Description copied from interface: INDArray

Insert a row in to this array Will throw an exception if this ndarray is not a matrix

Specified by:

putRow in interface INDArray

Overrides:

putRow in class BaseSparseNDArray

Parameters:

row - the row insert into

toPut - the row to insert

Returns:

this

putColumn

public INDArray putColumn(int column,
                          INDArray toPut)

Description copied from interface: INDArray

Insert a column in to this array Will throw an exception if this ndarray is not a matrix

Specified by:

putColumn in interface INDArray

Overrides:

putColumn in class BaseSparseNDArray

Parameters:

column - the column to insert

toPut - the array to put

Returns:

this

put

public INDArray put(INDArrayIndex[] indices,
                    INDArray element)

Description copied from interface: INDArray

Put the elements of the ndarray in to the specified indices

Specified by:

put in interface INDArray

Overrides:

put in class BaseSparseNDArray

Parameters:

indices - the indices to put the ndarray in to

element - the ndarray to put

Returns:

this ndarray

put

public INDArray put(INDArrayIndex[] indices,
                    Number element)

Description copied from interface: INDArray

Put the elements of the ndarray in to the specified indices

Specified by:

put in interface INDArray

Overrides:

put in class BaseSparseNDArray

Parameters:

indices - the indices to put the ndarray in to

element - the ndarray to put

Returns:

this ndarray

put

public INDArray put(int[] indexes,
                    INDArray element)

Description copied from interface: INDArray

Inserts the element at the specified index

Specified by:

put in interface INDArray

Overrides:

put in class BaseSparseNDArray

Parameters:

indexes - the indices to insert into

element - a scalar ndarray

Returns:

a scalar ndarray of the element at this index

put

public INDArray put(int i,
                    int j,
                    INDArray element)

Description copied from interface: INDArray

Inserts the element at the specified index

Specified by:

put in interface INDArray

Overrides:

put in class BaseSparseNDArray

Parameters:

i - the row insert into

j - the column to insert into

element - a scalar ndarray

Returns:

a scalar ndarray of the element at this index

put

public INDArray put(int i,
                    int j,
                    Number element)

Description copied from interface: INDArray

Inserts the element at the specified index

Specified by:

put in interface INDArray

Overrides:

put in class BaseSparseNDArray

Parameters:

i - the row insert into

j - the column to insert into

element - a scalar ndarray

Returns:

a scalar ndarray of the element at this index

put

public INDArray put(int i,
                    INDArray element)

Description copied from interface: INDArray

Inserts the element at the specified index

Specified by:

put in interface INDArray

Overrides:

put in class BaseSparseNDArray

Parameters:

i - the index insert into

element - a scalar ndarray

Returns:

a scalar ndarray of the element at this index

addOrUpdate

public void addOrUpdate(int[] indexes,
                        double value)

Add a new element in the ndarray or update the value if there is already a non-null element at this position

Parameters:

indexes - the indexes of the element to be added

value - the value of the element to be added

canInsert

public boolean canInsert(DataBuffer buffer,
                         int length)

Return if there is enough allocated memory space to add data of a given length in the databuffer

Parameters:

buffer - a databuffer in which we want to add data

length - the length of the data

Returns:

a boolean if the insertion is possible

shiftLeft

public DataBuffer shiftLeft(DataBuffer buffer,
                            int from,
                            int offset,
                            long datalength)

removeEntry

public INDArray removeEntry(int idx)

Remove an element of the ndarray

Parameters:

idx - the index of the element to be removed

Returns:

the ndarray

get

public INDArray get(INDArrayIndex... indexes)

Returns a subset of this array based on the specified indexes

Specified by:

get in interface INDArray

Overrides:

get in class BaseSparseNDArray

Parameters:

indexes - the indexes in to the array

Returns:

a view of the array with the specified indices

filterOutFixedDimensions

public int[] filterOutFixedDimensions(int[] flags,
                                      List<Integer> idx)

reverseIndexes

public int reverseIndexes(int... indexes)

Return the index of the value corresponding to the indexes

Parameters:

indexes -

Returns:

index of the value

indexesBinarySearch

public int indexesBinarySearch(int lowerBound,
                               int upperBound,
                               int[] idx)

Return the position of the idx array into the indexes buffer between the lower and upper bound.

Parameters:

idx - a set of coordinates

lowerBound - the lower bound of the position

upperBound - the upper bound of the position

Returns:

the position of the idx array into the indexes buffers, which corresponds to the position of the corresponding value in the values data.

getScalar

public INDArray getScalar(int... indices)

Description copied from interface: INDArray

Returns the elements at the the specified indices

Specified by:

getScalar in interface INDArray

Overrides:

getScalar in class BaseSparseNDArray

Parameters:

indices - the indices to getScalar

Returns:

the array with the specified elements

getInt

public int getInt(int... indices)

Description copied from interface: INDArray

Get an integer value at the specified indices. Result will be cast to an integer, precision loss is possible.

Specified by:

getInt in interface INDArray

Overrides:

getInt in class BaseSparseNDArray

Parameters:

indices - Indices to get the integer at. Number of indices must match the array rank.

Returns:

Integer value at the specified index

getDouble

public double getDouble(int... indices)

Description copied from interface: INDArray

Get a double value at the specified indices.

Specified by:

getDouble in interface INDArray

Overrides:

getDouble in class BaseSparseNDArray

Parameters:

indices - Indices to get the double at. Number of indices must match the array rank.

Returns:

Double value at the specified index

getFloat

public float getFloat(int[] indices)

Description copied from interface: INDArray

Returns the elements at the the specified indices

Specified by:

getFloat in interface INDArray

Overrides:

getFloat in class BaseSparseNDArray

Parameters:

indices - the indices to getScalar

Returns:

the array with the specified elements

getDouble

public double getDouble(int i)

Description copied from interface: INDArray

Get the double value at the specified linear index in the array

Specified by:

getDouble in interface INDArray

Overrides:

getDouble in class BaseSparseNDArray

Parameters:

i - Index

Returns:

Double value at the specified index

getDouble

public double getDouble(int i,
                        int j)

Description copied from interface: INDArray

Get the double value at the specified indices. Can only be used for 2D (rank 2) arrays.

Specified by:

getDouble in interface INDArray

Overrides:

getDouble in class BaseSparseNDArray

Parameters:

i - Dimension 0 (row) index

j - Dimension 1 (column) index

Returns:

getFloat

public float getFloat(int i)

Description copied from interface: INDArray

Return the item at the linear index i

Specified by:

getFloat in interface INDArray

Overrides:

getFloat in class BaseSparseNDArray

Parameters:

i - the index of the item to getScalar

Returns:

the item at index j

getFloat

public float getFloat(int i,
                      int j)

Description copied from interface: INDArray

Return the item at row i column j Note that this is the same as calling getScalar(new int[]{i,j}

Specified by:

getFloat in interface INDArray

Overrides:

getFloat in class BaseSparseNDArray

Parameters:

i - the row to getScalar

j - the column to getScalar

Returns:

the item at row i column j

getFormat

public SparseFormat getFormat()

Description copied from interface: ISparseNDArray

Return the sparse format (i.e COO, CSR, ...)

Returns:

format

See Also:

SparseFormat

underlyingRank

public int underlyingRank()

data

public DataBuffer data()

Description copied from interface: INDArray

Returns a linear double array representation of this ndarray

Returns:

the linear double array representation of this ndarray

getUnderlyingIndices

public DataBuffer getUnderlyingIndices()

Return the indices buffer

Returns:

indices

getIncludedIndices

public DataBuffer getIncludedIndices()

Return a copy of the indices included in the view. /!\ Change this DataBuffer won't change the ndarray!

Returns:

an array containing the virtual indexes of the values (think about views).

getUnderlyingValues

public DataBuffer getUnderlyingValues()

Return the values buffer

Returns:

values

getIncludedValues

public DataBuffer getIncludedValues()

Return a copy of the values included in the array. /!\ Change this DataBuffer won't change the ndarray!

Returns:

an array containing the values

getVectorCoordinates

public DataBuffer getVectorCoordinates()

Returns the indices of non-zero element of the vector

Returns:

indices in Databuffer

toDense

public INDArray toDense()

Converts the sparse ndarray into a dense one

Specified by:

toDense in interface INDArray

Specified by:

toDense in interface ISparseNDArray

Overrides:

toDense in class BaseSparseNDArray

Returns:

a dense ndarray

shapeInfoDataBuffer

public DataBuffer shapeInfoDataBuffer()

Description copied from interface: INDArray

Shape info

Specified by:

shapeInfoDataBuffer in interface INDArray

Overrides:

shapeInfoDataBuffer in class BaseSparseNDArray

Returns:

subArray

public INDArray subArray(ShapeOffsetResolution resolution)

Description copied from interface: INDArray

Sub array based on the pre calculated shape,strides, offsets

Specified by:

subArray in interface INDArray

Overrides:

subArray in class BaseSparseNDArray

Parameters:

resolution - the resolution to use

Returns:

the sub array based on the calculations from the resolution

subArray

public INDArray subArray(ShapeOffsetResolution resolution,
                         ShapeOffsetResolution resolutionWithoutNewAxis)

subArray

public INDArray subArray(long[] offsets,
                         int[] shape,
                         int[] stride)

Specified by:

subArray in interface INDArray

Overrides:

subArray in class BaseSparseNDArray

Returns:

getUnderlyingIndicesOf

public DataBuffer getUnderlyingIndicesOf(int i)

Returns the underlying indices of the element of the given index such as there really are in the original ndarray

Parameters:

i - the index of the element+

Returns:

a dataBuffer containing the indices of element

getIndicesOf

public DataBuffer getIndicesOf(int i)

Returns the indices of the element of the given index in the array context

Parameters:

i - the index of the element

Returns:

a dataBuffer containing the indices of element

isZero

public boolean isZero(int... indexes)

isView

public boolean isView()

Description copied from interface: INDArray

Returns true if this array is a view or not

Returns:

getNumHiddenDimension

public int getNumHiddenDimension()

isSorted

public boolean isSorted()

getValues

public DataBuffer getValues()

getIndices

public DataBuffer getIndices()

putiColumnVector

public INDArray putiColumnVector(INDArray columnVector)

Description copied from interface: INDArray

In place assignment of a column vector

Parameters:

columnVector - the column vector to add

Returns:

the result of the addition

putiRowVector

public INDArray putiRowVector(INDArray rowVector)

Description copied from interface: INDArray

in place assignment of row vector, to each row of this array

Parameters:

rowVector - Row vector to put

Returns:

This array, after assigning every road to the specified value

mmul

public INDArray mmul(INDArray other,
                     MMulTranspose mMulTranspose)

mmul

public INDArray mmul(INDArray other,
                     INDArray result,
                     MMulTranspose mMulTranspose)

Perform an copy matrix multiplication

Parameters:

other - the other matrix to perform matrix multiply with

result - the result ndarray

mMulTranspose - the transpose status of each array

Returns:

the result of the matrix multiplication

mmuli

public INDArray mmuli(INDArray other,
                      MMulTranspose transpose)

mmuli

public INDArray mmuli(INDArray other,
                      INDArray result,
                      MMulTranspose transpose)

convertToFloats

public INDArray convertToFloats()

convertToDoubles

public INDArray convertToDoubles()