Package org.ejml.dense.row.decomposition.chol

Class CholeskyDecompositionInner_DDRM

java.lang.Object

org.ejml.dense.row.decomposition.chol.CholeskyDecompositionCommon_DDRM

org.ejml.dense.row.decomposition.chol.CholeskyDecompositionInner_DDRM

All Implemented Interfaces:

org.ejml.interfaces.decomposition.CholeskyDecomposition<org.ejml.data.DMatrixRMaj>, org.ejml.interfaces.decomposition.CholeskyDecomposition_F64<org.ejml.data.DMatrixRMaj>, org.ejml.interfaces.decomposition.DecompositionInterface<org.ejml.data.DMatrixRMaj>

public class CholeskyDecompositionInner_DDRM
extends CholeskyDecompositionCommon_DDRM

This implementation of a Cholesky decomposition using the inner-product form. For large matrices a block implementation is better. On larger matrices the lower triangular decomposition is significantly faster. This is faster on smaller matrices than CholeskyDecompositionBlock_DDRM but much slower on larger matrices.

Field Summary

Fields inherited from class org.ejml.dense.row.decomposition.chol.CholeskyDecompositionCommon_DDRM

det, lower, maxWidth, n, t, T, vv

Constructor Summary

Constructors

Constructor	Description
CholeskyDecompositionInner_DDRM()
CholeskyDecompositionInner_DDRM(boolean lower)

Method Summary

Modifier and Type	Method	Description
protected boolean	decomposeLower()	Performs an lower triangular decomposition.
protected boolean	decomposeUpper()	Performs an upper triangular decomposition.

Methods inherited from class org.ejml.dense.row.decomposition.chol.CholeskyDecompositionCommon_DDRM

_getVV, computeDeterminant, decompose, getT, getT, inputModified, isLower, setExpectedMaxSize

Methods inherited from class java.lang.Object

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

Constructor Detail

CholeskyDecompositionInner_DDRM

public CholeskyDecompositionInner_DDRM()

CholeskyDecompositionInner_DDRM

public CholeskyDecompositionInner_DDRM(boolean lower)

Method Detail

decomposeLower

protected boolean decomposeLower()

Description copied from class: CholeskyDecompositionCommon_DDRM

Performs an lower triangular decomposition.

Specified by:

decomposeLower in class CholeskyDecompositionCommon_DDRM

Returns:

true if the matrix was decomposed.

decomposeUpper

protected boolean decomposeUpper()

Description copied from class: CholeskyDecompositionCommon_DDRM

Performs an upper triangular decomposition.

Specified by:

decomposeUpper in class CholeskyDecompositionCommon_DDRM

Returns:

true if the matrix was decomposed.