idl.tmt.representation.matrix
Class MatrixManipulator

java.lang.Object
  |
  +--idl.tmt.representation.matrix.MatrixManipulator

All Implemented Interfaces:

java.io.Serializable

public class MatrixManipulator

extends java.lang.Object

implements java.io.Serializable

Provides access to basic linear algebraic matrix operations, on one or more matrices.

Should not be accessed directly. The class is used by methods in TmtMatrix, which is more user friendly.

Author:

miles

See Also:

Serialized Form

Constructor Summary

MatrixManipulator()

Method Summary

DoubleMatrix2D	centerColumns(DoubleMatrix2D a)
DoubleMatrix2D	cor(DoubleMatrix2D a)
DoubleMatrix2D	cov(DoubleMatrix2D a)
EigenvalueDecomposition	getEigenvalueDecomposition(DoubleMatrix2D a)
SingularValueDecomposition	getSingularValueDecomposition(DoubleMatrix2D a)
DoubleMatrix2D	matrixMult(DoubleMatrix2D a, DoubleMatrix2D b)
DoubleMatrix2D	matrixSum(DoubleMatrix2D a, DoubleMatrix2D b)
DoubleMatrix2D	normalizeColumns(DoubleMatrix2D a)
DoubleMatrix2D	scalarMult(DoubleMatrix2D a, double lambda)
DoubleMatrix2D	transpose(DoubleMatrix2D a)

Methods inherited from class java.lang.Object

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

Constructor Detail

MatrixManipulator

public MatrixManipulator()

Method Detail

transpose

public DoubleMatrix2D transpose(DoubleMatrix2D a)

matrixMult

public DoubleMatrix2D matrixMult(DoubleMatrix2D a,
                                 DoubleMatrix2D b)

matrixSum

public DoubleMatrix2D matrixSum(DoubleMatrix2D a,
                                DoubleMatrix2D b)

scalarMult

public DoubleMatrix2D scalarMult(DoubleMatrix2D a,
                                 double lambda)

cov

public DoubleMatrix2D cov(DoubleMatrix2D a)

cor

public DoubleMatrix2D cor(DoubleMatrix2D a)

centerColumns

public DoubleMatrix2D centerColumns(DoubleMatrix2D a)

normalizeColumns

public DoubleMatrix2D normalizeColumns(DoubleMatrix2D a)

getEigenvalueDecomposition

public EigenvalueDecomposition getEigenvalueDecomposition(DoubleMatrix2D a)

getSingularValueDecomposition

public SingularValueDecomposition getSingularValueDecomposition(DoubleMatrix2D a)