org.ejml.alg.dense.linsol.qr

Class AdjLinearSolverQr_D64

java.lang.Object

org.ejml.alg.dense.linsol.LinearSolverAbstract_D64

org.ejml.alg.dense.linsol.qr.LinearSolverQr_D64

org.ejml.alg.dense.linsol.qr.AdjLinearSolverQr_D64

All Implemented Interfaces:

AdjustableLinearSolver, org.ejml.interfaces.linsol.LinearSolver<org.ejml.data.DenseMatrix64F>

public class AdjLinearSolverQr_D64
extends LinearSolverQr_D64
implements AdjustableLinearSolver

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.alg.dense.linsol.qr.LinearSolverQr_D64

maxCols, maxRows, Q, R

Fields inherited from class org.ejml.alg.dense.linsol.LinearSolverAbstract_D64

numCols, numRows

Constructor Summary

Constructors

Constructor and Description
AdjLinearSolverQr_D64()

Method Summary

Modifier and Type	Method and Description
boolean	addRowToA(double[] A_row, int rowIndex) Adds a row to A.
org.ejml.data.DenseMatrix64F	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.alg.dense.linsol.qr.LinearSolverQr_D64

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

Methods inherited from class org.ejml.alg.dense.linsol.LinearSolverAbstract_D64

_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, invert, modifiesA, modifiesB, quality, setA, solve

Constructor Detail

AdjLinearSolverQr_D64

public AdjLinearSolverQr_D64()

Method Detail

setMaxSize

public void setMaxSize(int maxRows,
                       int maxCols)

Description copied from class: LinearSolverQr_D64

Changes the size of the matrix it can solve for

Overrides:

setMaxSize in class LinearSolverQr_D64

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.DenseMatrix64F getA()

Compute the A matrix from the Q and R matrices.

Overrides:

getA in class LinearSolverAbstract_D64

Returns:

The A matrix.

addRowToA

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

Description copied from interface: AdjustableLinearSolver

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

Specified by:

addRowToA in interface AdjustableLinearSolver

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

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

Specified by:

removeRowFromA in interface AdjustableLinearSolver

Parameters:

index - which row is removed from A.

Returns:

If it succeeded or not.