mikera.matrixx

Class Matrix

java.lang.Object

mikera.transformz.ATransform

mikera.transformz.AAffineTransform

mikera.transformz.ALinearTransform

mikera.matrixx.AMatrix

mikera.matrixx.Matrix

All Implemented Interfaces:

Cloneable, Iterable<AVector>, INDArray, IMatrix, ITransform

public final class Matrix
extends AMatrix

Standard MxN matrix class backed by a flat double[] array

Author:

Mike

Field Summary

Fields

Modifier and Type	Field and Description
double[]	data

Constructor Summary

Constructors

Constructor and Description
Matrix(AMatrix m)
Matrix(int rowCount, int columnCount)
Matrix(Object... vs)

Method Summary

Methods

Modifier and Type	Method and Description
Vector	asVector() Returns the matrix values as a single reference Vector in the form [row0 row1 row2....]
int	columnCount() Returns the number of columns in the matrix
AMatrix	compose(AMatrix a)
double	elementSum() Returns the sum of all elements in the matrix
Matrix	exactClone()
double	get(int row, int column) Returns a specified element in the matrix
ArraySubVector	getRow(int row) Returns a row of the matrix as a vector view
boolean	isView() Return true if this is a view
int	rowCount() Returns the number of rows in the matrix
void	scale(double factor) Scales a matrix by a constant scalar factor.
void	set(AMatrix a)
void	set(int row, int column, double value) Sets a specified element in the matrix
void	swapRows(int i, int j) Swaps two rows of the matrix in place
void	transform(AVector source, AVector dest) Transforms the source vector, storing the result in the given destination vector
static Matrix	wrap(int rowCount, int columnCount, double[] data)

Methods inherited from class mikera.matrixx.AMatrix

add, addMultiple, applyOp, applyOp, calculateElement, clone, cloneRow, compose, composeWith, composeWith, copyOfMatrix, copyOfTranslationVector, determinant, dimensionality, elementCount, entrywiseMul, epsilonEquals, equals, equals, equals, equals, get, getColumn, getLeadingDiagonal, getMatrixComponent, getShape, getTranspose, hashCode, inputDimensions, inverse, isFullyMutable, isIdentity, isInvertible, isMutable, isSquare, isZeroMatrix, iterator, mul, outputDimensions, reshape, slice, sub, swapColumns, toAffineTransform, toMutableMatrix, toString, toVector, trace, transformInPlace, transposeInPlace

Methods inherited from class mikera.transformz.ALinearTransform

getTranslationComponent, isLinear

Methods inherited from class mikera.transformz.AAffineTransform

compose, transformNormal

Methods inherited from class mikera.transformz.ATransform

takeComponents, takeComponents, takeComponents, transform

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

data

public final double[] data

Constructor Detail

Matrix

public Matrix(int rowCount,
      int columnCount)

Matrix

public Matrix(AMatrix m)

Matrix

public Matrix(Object... vs)

Method Detail

isView

public boolean isView()

Description copied from interface: INDArray

Return true if this is a view

Specified by:

isView in interface INDArray

Overrides:

isView in class AMatrix

Returns:

wrap

public static Matrix wrap(int rowCount,
          int columnCount,
          double[] data)

compose

public AMatrix compose(AMatrix a)

Overrides:

compose in class AMatrix

elementSum

public double elementSum()

Description copied from class: AMatrix

Returns the sum of all elements in the matrix

Overrides:

elementSum in class AMatrix

Returns:

transform

public void transform(AVector source,
             AVector dest)

Description copied from class: ATransform

Transforms the source vector, storing the result in the given destination vector

Specified by:

transform in interface ITransform

Overrides:

transform in class AMatrix

getRow

public ArraySubVector getRow(int row)

Description copied from class: AMatrix

Returns a row of the matrix as a vector view

Overrides:

getRow in class AMatrix

rowCount

public int rowCount()

Description copied from class: AMatrix

Returns the number of rows in the matrix

Specified by:

rowCount in interface IMatrix

Specified by:

rowCount in class AMatrix

columnCount

public int columnCount()

Description copied from class: AMatrix

Returns the number of columns in the matrix

Specified by:

columnCount in interface IMatrix

Specified by:

columnCount in class AMatrix

swapRows

public void swapRows(int i,
            int j)

Description copied from class: AMatrix

Swaps two rows of the matrix in place

Overrides:

swapRows in class AMatrix

asVector

public Vector asVector()

Description copied from class: AMatrix

Returns the matrix values as a single reference Vector in the form [row0 row1 row2....]

Specified by:

asVector in interface INDArray

Overrides:

asVector in class AMatrix

get

public double get(int row,
         int column)

Description copied from class: AMatrix

Returns a specified element in the matrix

Specified by:

get in interface IMatrix

Specified by:

get in class AMatrix

set

public void set(int row,
       int column,
       double value)

Description copied from class: AMatrix

Sets a specified element in the matrix

Specified by:

set in interface IMatrix

Specified by:

set in class AMatrix

scale

public void scale(double factor)

Description copied from class: AMatrix

Scales a matrix by a constant scalar factor.

Overrides:

scale in class AMatrix

set

public void set(AMatrix a)

Overrides:

set in class AMatrix

exactClone

public Matrix exactClone()

Specified by:

exactClone in class AMatrix