Package org.ejml.sparse.csc.decomposition.qr

Class QrLeftLookingDecomposition_FSCC

java.lang.Object

org.ejml.sparse.csc.decomposition.qr.QrLeftLookingDecomposition_FSCC

All Implemented Interfaces:

org.ejml.interfaces.decomposition.DecompositionInterface<org.ejml.data.FMatrixSparseCSC>, org.ejml.interfaces.decomposition.DecompositionSparseInterface<org.ejml.data.FMatrixSparseCSC>, org.ejml.interfaces.decomposition.QRDecomposition<org.ejml.data.FMatrixSparseCSC>, org.ejml.interfaces.decomposition.QRSparseDecomposition<org.ejml.data.FMatrixSparseCSC>

public class QrLeftLookingDecomposition_FSCC
extends java.lang.Object
implements org.ejml.interfaces.decomposition.QRSparseDecomposition<org.ejml.data.FMatrixSparseCSC>

Left-looking QR decomposition algorithm for sparse matrices. A=Q*R

NOTE: See qr_left on page 71 and cs_qr() in csparse

Constructor Summary

Constructors

Constructor	Description
QrLeftLookingDecomposition_FSCC(org.ejml.sparse.ComputePermutation<org.ejml.data.FMatrixSparseCSC> permutation)

Method Summary

Modifier and Type	Method	Description
boolean	decompose(org.ejml.data.FMatrixSparseCSC A)
float[]	getBeta()
float	getBeta(int index)
int[]	getFillPermutation()
org.ejml.data.IGrowArray	getGwork()
org.ejml.data.FGrowArray	getGx()
org.ejml.data.FMatrixSparseCSC	getQ(org.ejml.data.FMatrixSparseCSC Q, boolean compact)
org.ejml.data.FMatrixSparseCSC	getR()
org.ejml.data.FMatrixSparseCSC	getR(org.ejml.data.FMatrixSparseCSC R, boolean compact)
QrStructuralCounts_FSCC	getStructure()
org.ejml.data.FMatrixSparseCSC	getV()
boolean	inputModified()
boolean	isFillPermutated()
boolean	isSingular()
boolean	isStructureLocked()
void	setStructureLocked(boolean locked)

Methods inherited from class java.lang.Object

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

Constructor Detail

QrLeftLookingDecomposition_FSCC

public QrLeftLookingDecomposition_FSCC(org.ejml.sparse.ComputePermutation<org.ejml.data.FMatrixSparseCSC> permutation)

Method Detail

decompose

public boolean decompose(org.ejml.data.FMatrixSparseCSC A)

Specified by:

decompose in interface org.ejml.interfaces.decomposition.DecompositionInterface<org.ejml.data.FMatrixSparseCSC>

getQ

public org.ejml.data.FMatrixSparseCSC getQ(org.ejml.data.FMatrixSparseCSC Q,
                                           boolean compact)

Specified by:

getQ in interface org.ejml.interfaces.decomposition.QRDecomposition<org.ejml.data.FMatrixSparseCSC>

getR

public org.ejml.data.FMatrixSparseCSC getR(org.ejml.data.FMatrixSparseCSC R,
                                           boolean compact)

Specified by:

getR in interface org.ejml.interfaces.decomposition.QRDecomposition<org.ejml.data.FMatrixSparseCSC>

inputModified

public boolean inputModified()

Specified by:

inputModified in interface org.ejml.interfaces.decomposition.DecompositionInterface<org.ejml.data.FMatrixSparseCSC>

getGwork

public org.ejml.data.IGrowArray getGwork()

getGx

public org.ejml.data.FGrowArray getGx()

getStructure

public QrStructuralCounts_FSCC getStructure()

getV

public org.ejml.data.FMatrixSparseCSC getV()

getR

public org.ejml.data.FMatrixSparseCSC getR()

getBeta

public float[] getBeta()

getBeta

public float getBeta(int index)

getFillPermutation

public int[] getFillPermutation()

isFillPermutated

public boolean isFillPermutated()

isSingular

public boolean isSingular()

setStructureLocked

public void setStructureLocked(boolean locked)

Specified by:

setStructureLocked in interface org.ejml.interfaces.decomposition.DecompositionSparseInterface<org.ejml.data.FMatrixSparseCSC>

isStructureLocked

public boolean isStructureLocked()

Specified by:

isStructureLocked in interface org.ejml.interfaces.decomposition.DecompositionSparseInterface<org.ejml.data.FMatrixSparseCSC>