Method testSwapRows

JSAT/test/jsat/linear/DenseMatrixTest.java:684–720

Test of swapRows method, of class DenseMatrix.

()

     * Test of swapRows method, of class DenseMatrix.
     */
    @Test
    public void testSwapRows()
    {
        System.out.println("swapRows");
        
        Matrix Expected = new DenseMatrix(new double[][] 
        {
            {5, 5, 3, 7, 2, 10, 0},
            {1, 2, 6, 5, 8, 1, 9},
            {8, 0, 5, 7, 9, 1, 8},
            {9, 3, 2, 7, 2, 4, 8},
            {1, 6, 8, 3, 1, 5, 10}
        } );
        
        Matrix test = C.clone();
        
        
        test.swapRows(1, 0);
        test.swapRows(1, 0);
        assertEquals(C, test);
        test.swapRows(0, 1);
        test.swapRows(0, 1);
        assertEquals(C, test);
        test.swapRows(3, 3);
        assertEquals(C, test);
        
        
        test.swapRows(0, 4);
        test.swapRows(0, 1);
        assertEquals(Expected, test);
        
        
        test = C.clone();
        test.swapRows(4, 0);
        test.swapRows(1, 0);
        assertEquals(Expected, test);
    }

    /**
     * Test of zeroOut method, of class DenseMatrix.