mikera.matrixx

Class Matrixx

java.lang.Object

mikera.matrixx.Matrixx

public class Matrixx
extends Object

Static method class for matrices

Author:

Mike

Constructor Summary

Constructors

Constructor and Description
Matrixx()

Method Summary

Methods

Modifier and Type	Method and Description
static Matrix	create(AMatrix m) Creates a mutable deep copy of a matrix
static Matrix	create(double[][] data)
static AMatrix	create(IMatrix m) Creates a mutable copy of a matrix
static Matrix	create(List<Object> rows) Create a matrix from a list of rows
static AMatrix	create(Object... vs)
static Matrix22	create2DRotationMatrix(double angle)
static Matrix	createFromVector(AVector data, int rows, int columns) Creates a new matrix using the elements in the specified vector.
static Matrix	createFromVectors(AVector... data)
static AMatrix	createFromVectors(List<AVector> data)
static AMatrix	createIdentityMatrix(int dimensions) Creates an mutable identity matrix
static IdentityMatrix	createImmutableIdentityMatrix(int dimensions) Creates an immutable identity matrix
static ZeroMatrix	createImmutableZeroMatrix(int rows, int columns) Creates an immutable zero-filled matrix
static AMatrix	createRandomMatrix(int rows, int columns)
static Matrix	createRandomSquareMatrix(int dimensions)
static Matrix33	createRotationMatrix(AVector v, double angle)
static Matrix33	createRotationMatrix(double x, double y, double z, double angle)
static Matrix33	createRotationMatrix(Vector3 axis, double angle)
static ADiagonalMatrix	createScalarMatrix(int dimensions, double factor)
static DiagonalMatrix	createScaleMatrix(double... scalingFactors)
static ADiagonalMatrix	createScaleMatrix(int dimensions, double factor)
static AMatrix	createSparse(AMatrix m) Creates a sparse matrix from the given matrix, ignoring zeros
static AMatrix	createSparse(int inputDims, Index[] indexes, AVector[] weights)
static AMatrix	createSparse(int rowCount, int columnCount) Creates a sparse matrix from the given matrix, ignoring zeros.
static AMatrix	createSparse(List<INDArray> slices)
static SparseColumnMatrix	createSparseColumns(AMatrix m) Creates a SparseColumnMatrix from the given matrix, ignoring zeros
static SparseRowMatrix	createSparseRows(AMatrix m) Creates a SparseRowMatrix matrix from the given matrix, ignoring zeros
static AMatrix	createSparseRows(Iterable<AVector> rows) Creates a sparse matrix from the given matrix, ignoring zeros.
static AMatrix	createSparseRows(Iterator<AVector> rowIterator) Creates a sparse matrix from the given iterator.
static Matrix33	createXAxisRotationMatrix(double angle)
static Matrix33	createYAxisRotationMatrix(double angle)
static Matrix33	createZAxisRotationMatrix(double angle)
static Matrix	deepCopy(AMatrix m)
static void	fillRandomValues(AMatrix m)
static AMatrix	newMatrix(int rows, int columns) Creates an empty (zero-filled) mutable matrix of the specified size
static AMatrix	parse(String ednString) Parse a matrix in edn format
static AMatrix	toMatrix(Object o) Coerces to a matrix
static AMatrix	wrapStrided(double[] data, int rows, int cols, int offset, int rowStride, int colStride) Wraps double[] data in a strided matrix

Methods inherited from class java.lang.Object

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

Constructor Detail

Matrixx

public Matrixx()

Method Detail

createIdentityMatrix

public static AMatrix createIdentityMatrix(int dimensions)

Creates an mutable identity matrix

createImmutableIdentityMatrix

public static IdentityMatrix createImmutableIdentityMatrix(int dimensions)

Creates an immutable identity matrix

toMatrix

public static AMatrix toMatrix(Object o)

Coerces to a matrix

createSparse

public static AMatrix createSparse(AMatrix m)

Creates a sparse matrix from the given matrix, ignoring zeros

createSparse

public static AMatrix createSparse(int rowCount,
                   int columnCount)

Creates a sparse matrix from the given matrix, ignoring zeros. Uses row-based storage by default

createSparseRows

public static AMatrix createSparseRows(Iterable<AVector> rows)

Creates a sparse matrix from the given matrix, ignoring zeros. Uses row-based storage by default

createSparseRows

public static AMatrix createSparseRows(Iterator<AVector> rowIterator)

Creates a sparse matrix from the given iterator. Each vector in the iterator will be copied to a row in the new sparse matrix

createSparseColumns

public static SparseColumnMatrix createSparseColumns(AMatrix m)

Creates a SparseColumnMatrix from the given matrix, ignoring zeros

createSparseRows

public static SparseRowMatrix createSparseRows(AMatrix m)

Creates a SparseRowMatrix matrix from the given matrix, ignoring zeros

createImmutableZeroMatrix

public static ZeroMatrix createImmutableZeroMatrix(int rows,
                                   int columns)

Creates an immutable zero-filled matrix

createScaleMatrix

public static ADiagonalMatrix createScaleMatrix(int dimensions,
                                double factor)

createScalarMatrix

public static ADiagonalMatrix createScalarMatrix(int dimensions,
                                 double factor)

createScaleMatrix

public static DiagonalMatrix createScaleMatrix(double... scalingFactors)

createRotationMatrix

public static Matrix33 createRotationMatrix(Vector3 axis,
                            double angle)

createRotationMatrix

public static Matrix33 createRotationMatrix(double x,
                            double y,
                            double z,
                            double angle)

createRotationMatrix

public static Matrix33 createRotationMatrix(AVector v,
                            double angle)

createXAxisRotationMatrix

public static Matrix33 createXAxisRotationMatrix(double angle)

createYAxisRotationMatrix

public static Matrix33 createYAxisRotationMatrix(double angle)

createZAxisRotationMatrix

public static Matrix33 createZAxisRotationMatrix(double angle)

create2DRotationMatrix

public static Matrix22 create2DRotationMatrix(double angle)

createRandomSquareMatrix

public static Matrix createRandomSquareMatrix(int dimensions)

createRandomMatrix

public static AMatrix createRandomMatrix(int rows,
                         int columns)

newMatrix

public static AMatrix newMatrix(int rows,
                int columns)

Creates an empty (zero-filled) mutable matrix of the specified size

Parameters:

rows -

columns -

Returns:

createFromVector

public static Matrix createFromVector(AVector data,
                      int rows,
                      int columns)

Creates a new matrix using the elements in the specified vector. Truncates or zero-pads the data as required to fill the new matrix

Parameters:

data -

rows -

columns -

Returns:

create

public static Matrix create(AMatrix m)

Creates a mutable deep copy of a matrix

create

public static Matrix create(List<Object> rows)

Create a matrix from a list of rows

Parameters:

rows -

Returns:

create

public static AMatrix create(IMatrix m)

Creates a mutable copy of a matrix

fillRandomValues

public static void fillRandomValues(AMatrix m)

createFromVectors

public static Matrix createFromVectors(AVector... data)

createFromVectors

public static AMatrix createFromVectors(List<AVector> data)

parse

public static AMatrix parse(String ednString)

Parse a matrix in edn format

Parameters:

ednString -

Returns:

deepCopy

public static Matrix deepCopy(AMatrix m)

createSparse

public static AMatrix createSparse(int inputDims,
                   Index[] indexes,
                   AVector[] weights)

create

public static AMatrix create(Object... vs)

create

public static Matrix create(double[][] data)

wrapStrided

public static AMatrix wrapStrided(double[] data,
                  int rows,
                  int cols,
                  int offset,
                  int rowStride,
                  int colStride)

Wraps double[] data in a strided matrix

Parameters:

array -

arrayOffset -

reverse -

reverse2 -

Returns:

createSparse

public static AMatrix createSparse(List<INDArray> slices)