org.nd4j.linalg.api.ndarray

Interface ISparseNDArray

All Superinterfaces:

INDArray, Serializable

All Known Implementing Classes:

BaseSparseNDArray, BaseSparseNDArrayCOO, BaseSparseNDArrayCSR

public interface ISparseNDArray
extends INDArray

Author:

Audrey Loeffel

Method Summary

Modifier and Type	Method and Description
SparseFormat	getFormat() Return the sparse format (i.e COO, CSR, ...)
DataBuffer	getVectorCoordinates() Return a array of non-major pointers i.e.
int	nnz() Return the number of non-null element
INDArray	toDense() Return a dense representation of the sparse ndarray

Methods inherited from interface org.nd4j.linalg.api.ndarray.INDArray

add, add, add, add, add, add, addColumnVector, addi, addi, addi, addi, addi, addi, addiColumnVector, addiRowVector, addRowVector, amax, amaxNumber, amean, ameanNumber, amin, aminNumber, argMax, assign, assign, assignIf, broadcast, broadcast, checkDimensions, cleanup, columns, cond, condi, convertToDoubles, convertToFloats, cumsum, cumsumi, data, 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, equalsWithEps, flags, fmod, fmod, fmod, fmod, fmodi, fmodi, get, get, get, getColumn, getColumns, getDouble, getDouble, getDouble, getDoubleUnsafe, getFloat, getFloat, getFloat, getInt, getLeadingOnes, getRow, getRows, getScalar, getScalar, getScalar, getTrailingOnes, getWhere, getWhere, gt, gt, gte, gtei, gti, gti, hiddenDimensions, index, innerMostStride, isAttached, isCleanedUp, isColumnVector, isColumnVectorOrScalar, isCompressed, isInScope, isMatrix, isRowVector, isRowVectorOrScalar, isScalar, isSparse, isSquare, isVector, isVectorOrScalar, isView, 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, mmul, mmul, mmuli, mmuli, mmuli, mmuli, mul, mul, mul, mul, mul, mul, mulColumnVector, muli, muli, muli, muli, muli, muli, muliColumnVector, muliRowVector, mulRowVector, neg, negi, neq, neq, neqi, neqi, norm1, norm1Complex, norm1Number, norm2, norm2Complex, norm2Number, normmax, normmaxComplex, normmaxNumber, offset, ordering, originalOffset, percentile, percentileNumber, permute, permutei, prod, prodComplex, prodNumber, put, put, put, put, put, put, put, put, putColumn, putiColumnVector, putiRowVector, putRow, putScalar, putScalar, putScalar, putScalar, putScalar, putScalar, putScalar, 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, 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, setStride, setWrapAround, shannonEntropy, shannonEntropyNumber, shape, shapeInfo, shapeInfoDataBuffer, shapeInfoToString, size, slice, slice, slices, sliceVectors, sparseInfoDataBuffer, sparseOffsets, squaredDistance, std, std, stdComplex, stdNumber, stdNumber, stride, stride, sub, sub, sub, sub, sub, sub, subArray, subArray, subColumnVector, subi, subi, subi, subi, subi, subi, subiColumnVector, subiRowVector, subRowVector, sum, sum, sumComplex, sumNumber, swapAxes, tensorAlongDimension, tensorssAlongDimension, toDoubleMatrix, toDoubleVector, toFlatArray, toFloatMatrix, toFloatVector, toIntMatrix, toIntVector, transpose, transposei, underlyingRank, unsafeDuplication, unsafeDuplication, var, var, varComplex, varNumber, vectorAlongDimension, vectorsAlongDimension

Method Detail

getVectorCoordinates

DataBuffer getVectorCoordinates()

Return a array of non-major pointers i.e. return the column indexes in case of row-major ndarray

Specified by:

getVectorCoordinates in interface INDArray

Returns:

a DataBuffer of indexes

toDense

INDArray toDense()

Return a dense representation of the sparse ndarray

Specified by:

toDense in interface INDArray

nnz

int nnz()

Return the number of non-null element

Specified by:

nnz in interface INDArray

Returns:

nnz

getFormat

SparseFormat getFormat()

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

Specified by:

getFormat in interface INDArray

Returns:

format

See Also:

SparseFormat