Package org.ejml.dense.row.linsol.qr

Class 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.

    • Constructor Detail

      • AdjLinearSolverQr_DDRM

        public AdjLinearSolverQr_DDRM()

    • Method Detail

      • 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.