Package org.ejml.dense.row.linsol.qr

Class AdjLinearSolverQr_DDRM

java.lang.Object

org.ejml.dense.row.linsol.LinearSolverAbstract_DDRM

org.ejml.dense.row.linsol.qr.LinearSolverQr_DDRM

org.ejml.dense.row.linsol.qr.AdjLinearSolverQr_DDRM

All Implemented Interfaces:

AdjustableLinearSolver_DDRM, org.ejml.interfaces.linsol.LinearSolver<org.ejml.data.DMatrixRMaj,org.ejml.data.DMatrixRMaj>, org.ejml.interfaces.linsol.LinearSolverDense<org.ejml.data.DMatrixRMaj>

public class AdjLinearSolverQr_DDRM
extends LinearSolverQr_DDRM
implements AdjustableLinearSolver_DDRM

A solver for QR decomposition that can efficiently modify the previous decomposition when data is added or removed.

Field Summary

Fields inherited from class org.ejml.dense.row.linsol.qr.LinearSolverQr_DDRM

maxCols, maxRows, Q, R

Fields inherited from class org.ejml.dense.row.linsol.LinearSolverAbstract_DDRM

numCols, numRows

Constructor Summary

Constructors

Constructor	Description
AdjLinearSolverQr_DDRM()

Method Summary

Modifier and Type	Method	Description
boolean	addRowToA(double[] A_row, int rowIndex)	Adds a row to A.
org.ejml.data.DMatrixRMaj	getA()	Compute the A matrix from the Q and R matrices.
boolean	removeRowFromA(int index)	Removes a row from A.
void	setMaxSize(int maxRows, int maxCols)	Changes the size of the matrix it can solve for

Methods inherited from class org.ejml.dense.row.linsol.qr.LinearSolverQr_DDRM

getDecomposer, getDecomposition, getQ, getR, modifiesA, modifiesB, quality, setA, solve

Methods inherited from class org.ejml.dense.row.linsol.LinearSolverAbstract_DDRM

_setA, invert

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.ejml.interfaces.linsol.LinearSolver

getDecomposition, modifiesA, modifiesB, quality, setA, solve

Methods inherited from interface org.ejml.interfaces.linsol.LinearSolverDense

invert

Constructor Details

AdjLinearSolverQr_DDRM

public AdjLinearSolverQr_DDRM()

Method Details

setMaxSize

public void setMaxSize(int maxRows, int maxCols)

Description copied from class: LinearSolverQr_DDRM

Changes the size of the matrix it can solve for

Overrides:

setMaxSize in class LinearSolverQr_DDRM

Parameters:

maxRows - Maximum number of rows in the matrix it will decompose.

maxCols - Maximum number of columns in the matrix it will decompose.

getA

public org.ejml.data.DMatrixRMaj getA()

Compute the A matrix from the Q and R matrices.

Overrides:

getA in class LinearSolverAbstract_DDRM

Returns:

The A matrix.

addRowToA

public boolean addRowToA(double[] A_row, int rowIndex)

Description copied from interface: AdjustableLinearSolver_DDRM

Adds a row to A. This has the same effect as creating a new A and calling LinearSolver.setA(S).

Specified by:

addRowToA in interface AdjustableLinearSolver_DDRM

Parameters:

A_row - The row in A.

rowIndex - Where the row appears in A.

Returns:

if it succeeded or not.

removeRowFromA

public boolean removeRowFromA(int index)

Description copied from interface: AdjustableLinearSolver_DDRM

Removes a row from A. This has the same effect as creating a new A and calling LinearSolver.setA(S).

Specified by:

removeRowFromA in interface AdjustableLinearSolver_DDRM

Parameters:

index - which row is removed from A.

Returns:

If it succeeded or not.