Class RealCsrManipulations

java.lang.Object

org.flag4j.linalg.ops.sparse.csr.real.RealCsrManipulations

public final class RealCsrManipulations
extends Object

Utility class for manipulating real sparse CSR matrices (e.g. row swaps, column swaps, etc.).

Method Summary

Modifier and Type	Method	Description
static void	swapCols(CsrMatrix src, int colIdx1, int colIdx2)	Swaps two columns in a sparse CSR matrix.
static void	swapRows(CsrMatrix src, int rowIdx1, int rowIdx2)	Swaps two rows in a sparse CSR matrix.

Methods inherited from class java.lang.Object

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

Method Details

swapRows

public static void swapRows(CsrMatrix src,
 int rowIdx1,
 int rowIdx2)

Swaps two rows in a sparse CSR matrix. This is done in place.

Parameters:

src - The matrix to swap rows within, done in place.

rowIdx1 - Index of the first row to swap.

rowIdx2 - Index of the second row to swap.

Throws:

IndexOutOfBoundsException - If either rowIdx1 or rowIdx2 is out of bounds of the rows of this matrix.

swapCols

public static void swapCols(CsrMatrix src,
 int colIdx1,
 int colIdx2)

Swaps two columns in a sparse CSR matrix. This is done in place.

Parameters:

src - The matrix to swap rows within, done in place.

colIdx1 - Index of the first column to swap.

colIdx2 - Index of the second column to swap.

Throws:

IndexOutOfBoundsException - If either colIndex1 or colIndex2 is out of bounds of the columns of this matrix.