mikera.matrixx.impl

Class AArrayMatrix

java.lang.Object

mikera.transformz.ATransform

mikera.transformz.AAffineTransform

mikera.transformz.ALinearTransform

mikera.matrixx.AMatrix

mikera.matrixx.impl.AArrayMatrix

All Implemented Interfaces:

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

Direct Known Subclasses:

AStridedMatrix

public abstract class AArrayMatrix
extends AMatrix

Abstract class for a Matrix backed with a single double[] data array Dimensions are fixed, but leaves open the possibility of arbitrary indexing

Author:

Mike

Field Summary

Fields

Modifier and Type	Field and Description
protected int	cols
double[]	data
protected int	rows

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AArrayMatrix(double[] data, int rows, int cols)

Method Summary

Methods

Modifier and Type	Method and Description
int	columnCount() Returns the number of columns in the matrix
double	get(int i, int j) Returns a specified element in the matrix
double[]	getArray()
protected abstract int	index(int i, int j) Computes the index into the data array for a given position in the matrix
abstract boolean	isPackedArray() Returns true if the data array is fully packed by this matrix in row-major order
int	rowCount() Returns the number of rows in the matrix
void	set(int i, int j, double value) Sets a specified element in the matrix
double	unsafeGet(int i, int j) Gets an element in the matrix in an unsafe fashion, without performing bound checks The result is undefined if the row and column are out of bounds.
void	unsafeSet(int i, int j, double value) Sets an element value in the matrix in an unsafe fashion, without performing bound checks The result is undefined if the row and column are out of bounds.

Methods inherited from class mikera.matrixx.AMatrix

abs, add, add, add, add, add, addAt, addMultiple, addRowMultiple, applyOp, applyOp, asDoubleArray, asElementList, asVector, bandIndex, bandLength, bandLength, bandPosition, broadcast, broadcastCloneLike, broadcastLike, broadcastLike, calculateElement, calculateElement, clamp, clone, cloneRow, compose, compose, composeWith, composeWith, copyColumnTo, copyOfMatrix, copyOfTranslationVector, copyRowTo, copyTo, determinant, dimensionality, divide, divide, elementCount, elementDiv, elementIterator, elementMul, elementSquaredSum, elementSum, ensureMutable, epsilonEquals, epsilonEquals, epsilonEquals, equals, equals, equals, equals, exactClone, exp, fill, get, get, get, getBand, getBandWrapped, getColumn, getElements, getLeadingDiagonal, getLongShape, getMatrixComponent, getRow, getShape, getShape, getSlices, getSliceViews, getTranspose, getTransposeCopy, getTransposeView, hashCode, hasOrthonormalColumns, hassOrthonormalRows, innerProduct, innerProduct, innerProduct, innerProduct, innerProduct, innerProduct, inputDimensions, inverse, isBoolean, isDiagonal, isElementConstrained, isFullyMutable, isHermitian, isIdentity, isInvertible, isLowerTriangular, isMutable, isOrthogonal, isPositiveDefinite, isRectangularDiagonal, isSameShape, isSameShape, isSquare, isSymmetric, isUpperTriangular, isView, isZero, iterator, log, lowerBandwidth, lowerBandwidthLimit, mul, multiply, multiply, multiplyRow, negate, nonZeroCount, outerProduct, outputDimensions, pow, reciprocal, reshape, reshape, scale, scaleAdd, set, set, set, set, set, set, setColumn, setElements, setElements, setRow, signum, slice, slice, sliceCount, sqrt, square, sub, sub, sub, sub, sub, subMatrix, swapColumns, swapRows, toAffineTransform, toArray, toDoubleArray, toDoubleBuffer, toMatrix, toMatrixTranspose, toMutableMatrix, toString, toVector, trace, transform, transform, transform, transform, transformInPlace, transformInPlace, transposeInnerProduct, transposeInnerProduct, transposeInPlace, upperBandwidth, upperBandwidthLimit, validate

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

Methods inherited from class java.lang.Object

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

Field Detail

rows

protected final int rows

cols

protected final int cols

data

public final double[] data

Constructor Detail

AArrayMatrix

protected AArrayMatrix(double[] data,
            int rows,
            int cols)

Method Detail

rowCount

public final 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 final 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

get

public double get(int i,
         int j)

Description copied from class: AMatrix

Returns a specified element in the matrix

Specified by:

get in interface INDArray

Specified by:

get in interface IMatrix

Specified by:

get in class AMatrix

Returns:

set

public void set(int i,
       int j,
       double value)

Description copied from class: AMatrix

Sets a specified element in the matrix

Specified by:

set in interface INDArray

Specified by:

set in interface IMatrix

Specified by:

set in class AMatrix

unsafeGet

public double unsafeGet(int i,
               int j)

Description copied from class: AMatrix

Gets an element in the matrix in an unsafe fashion, without performing bound checks The result is undefined if the row and column are out of bounds.

Overrides:

unsafeGet in class AMatrix

Returns:

unsafeSet

public void unsafeSet(int i,
             int j,
             double value)

Description copied from class: AMatrix

Sets an element value in the matrix in an unsafe fashion, without performing bound checks The result is undefined if the row and column are out of bounds.

Overrides:

unsafeSet in class AMatrix

isPackedArray

public abstract boolean isPackedArray()

Returns true if the data array is fully packed by this matrix in row-major order

Returns:

index

protected abstract int index(int i,
        int j)

Computes the index into the data array for a given position in the matrix

Parameters:

i -

j -

Returns:

getArray

public double[] getArray()