org.ejml.sparse.csc.misc

Class ApplyFillReductionPermutation

java.lang.Object

org.ejml.sparse.csc.misc.ApplyFillReductionPermutation

public class ApplyFillReductionPermutation
extends java.lang.Object

Applies the fill reduction row pivots to the input matrix to reduce fill in during decomposition/solve. P*A*Q where P are row pivots and Q are column pivots.

Constructor Summary

Constructors

Constructor and Description
ApplyFillReductionPermutation(ComputePermutation<org.ejml.data.DMatrixSparseCSC> fillReduce, boolean symmetric)

Method Summary

Modifier and Type	Method and Description
org.ejml.data.DMatrixSparseCSC	apply(org.ejml.data.DMatrixSparseCSC A) Computes and applies the fill reduction permutation.
int[]	getArrayP()
int[]	getArrayPinv()
int[]	getArrayQ()
ComputePermutation<org.ejml.data.DMatrixSparseCSC>	getFillReduce()
org.ejml.data.IGrowArray	getGw()
boolean	isApplied()
void	setGw(org.ejml.data.IGrowArray gw)

Methods inherited from class java.lang.Object

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

Constructor Detail

ApplyFillReductionPermutation

public ApplyFillReductionPermutation(ComputePermutation<org.ejml.data.DMatrixSparseCSC> fillReduce,
                                     boolean symmetric)

Method Detail

apply

public org.ejml.data.DMatrixSparseCSC apply(org.ejml.data.DMatrixSparseCSC A)

Computes and applies the fill reduction permutation. Either A is returned (unmodified) or the permutated version of A.

Parameters:

A - Input matrix. unmodified.

Returns:

A permuted matrix. Might be A or a different matrix.

getArrayPinv

public int[] getArrayPinv()

getArrayP

public int[] getArrayP()

getArrayQ

public int[] getArrayQ()

getGw

public org.ejml.data.IGrowArray getGw()

setGw

public void setGw(org.ejml.data.IGrowArray gw)

getFillReduce

public ComputePermutation<org.ejml.data.DMatrixSparseCSC> getFillReduce()

isApplied

public boolean isApplied()