Example usage for org.apache.commons.math3.linear RealMatrix copySubMatrix

Introduction

In this page you can find the example usage for org.apache.commons.math3.linear RealMatrix copySubMatrix.

Prototype

void copySubMatrix(int[] selectedRows, int[] selectedColumns, double[][] destination)
        throws OutOfRangeException, NullArgumentException, NoDataException, MatrixDimensionMismatchException;

Source Link

Document

Copy a submatrix.

Usage

From source file:lirmm.inria.fr.math.BigSparseRealMatrixTest.java

private void checkCopy(RealMatrix m, double[][] reference, int[] selectedRows, int[] selectedColumns,
        boolean mustFail) {
    try {//from   ww w.j  a  v  a 2 s.  co  m
        double[][] sub = (reference == null) ? new double[1][1] : createIdenticalCopy(reference);
        m.copySubMatrix(selectedRows, selectedColumns, sub);
        Assert.assertEquals(new BigSparseRealMatrix(reference), new BigSparseRealMatrix(sub));
        if (mustFail) {
            Assert.fail("Expecting OutOfRangeException or NumberIsTooSmallException or NoDataException");
        }
    } catch (OutOfRangeException e) {
        if (!mustFail) {
            throw e;
        }
    } catch (NumberIsTooSmallException e) {
        if (!mustFail) {
            throw e;
        }
    } catch (NoDataException e) {
        if (!mustFail) {
            throw e;
        }
    } catch (MatrixDimensionMismatchException e) {
        if (!mustFail) {
            throw e;
        }
    }
}

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