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

Class LinearSolverQrpHouseCol_DDRM

java.lang.Object

org.ejml.dense.row.linsol.LinearSolverAbstract_DDRM

org.ejml.dense.row.linsol.qr.BaseLinearSolverQrp_DDRM

org.ejml.dense.row.linsol.qr.LinearSolverQrpHouseCol_DDRM

All Implemented Interfaces:

LinearSolver<DMatrixRMaj,DMatrixRMaj>, LinearSolverDense<DMatrixRMaj>

public class LinearSolverQrpHouseCol_DDRM
extends BaseLinearSolverQrp_DDRM

Performs a pseudo inverse solver using the QRColPivDecompositionHouseholderColumn_DDRM decomposition directly. For details on how the pseudo inverse is computed see BaseLinearSolverQrp_DDRM.

Field Summary

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

I, internalSolver, norm2Solution, R, R11, rank, Y

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

A, numCols, numRows

Constructor Summary

Constructors

Constructor	Description
LinearSolverQrpHouseCol_DDRM(QRColPivDecompositionHouseholderColumn_DDRM decomposition, boolean norm2Solution)

Method Summary

Modifier and Type	Method	Description
boolean	modifiesA()	Returns true if the passed in matrix to LinearSolver.setA(Matrix) is modified.
boolean	modifiesB()	Returns true if the passed in 'B' matrix to LinearSolver.solve(Matrix, Matrix) is modified.
void	solve(DMatrixRMaj B, DMatrixRMaj X)	Solves for X in the linear system, A*X=B.

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

getDecomposition, invert, quality, setA, upgradeSolution

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

_setA, getA

Methods inherited from class java.lang.Object

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

Constructor Details

LinearSolverQrpHouseCol_DDRM

public LinearSolverQrpHouseCol_DDRM(QRColPivDecompositionHouseholderColumn_DDRM decomposition,
 boolean norm2Solution)

Method Details

solve

public void solve(DMatrixRMaj B,
 DMatrixRMaj X)

Description copied from interface: LinearSolver

Solves for X in the linear system, A*X=B.

In some implementations 'B' and 'X' can be the same instance of a variable. Call LinearSolver.modifiesB() to determine if 'B' is modified.

Parameters:

B - A matrix ℜ ^{m × p}. Might be modified.

X - A matrix ℜ ^{n × p}, where the solution is written to. Modified.

modifiesA

public boolean modifiesA()

Description copied from interface: LinearSolver

Returns true if the passed in matrix to LinearSolver.setA(Matrix) is modified.

Returns:

true if A is modified in setA().

modifiesB

public boolean modifiesB()

Description copied from interface: LinearSolver

Returns true if the passed in 'B' matrix to LinearSolver.solve(Matrix, Matrix) is modified.

Returns:

true if B is modified in solve(B,X).