Package org.ejml.alg.dense.decomposition.qr

Examples of org.ejml.alg.dense.decomposition.qr.QRDecompositionHouseholderTran

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    @Test
    public void decomposeQR_block_col() {
        DenseMatrix64F A = RandomMatrices.createRandom(r*2+r-1,r,-1,1,rand);
        BlockMatrix64F Ab = BlockMatrixOps.convert(A,r);

        QRDecompositionHouseholderTran algTest = new QRDecompositionHouseholderTran();
        assertTrue(algTest.decompose(A));

        double gammas[] = new double[A.numCols];
        BlockHouseHolder.decomposeQR_block_col(r,new D1Submatrix64F(Ab),gammas);

        DenseMatrix64F expected = CommonOps.transpose(algTest.getQR(),null);

        assertTrue(GenericMatrixOps.isEquivalent(expected,Ab,1e-8));
    }
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    private void checkSize( int numRows , int numCols ) {
        DenseMatrix64F A = RandomMatrices.createRandom(numRows,numCols,-1,1,rand);
        BlockMatrix64F Ab = BlockMatrixOps.convert(A,r);

        QRDecompositionHouseholderTran algCheck = new QRDecompositionHouseholderTran();
        assertTrue(algCheck.decompose(A));

        assertTrue(alg.decompose(Ab));

        DenseMatrix64F expected = CommonOps.transpose(algCheck.getQR(),null);
//        expected.print();
//        Ab.print();

        EjmlUnitTests.assertEquals(expected,Ab,1e-8);
    }
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    /**
     * Creates a linear solver that uses QR decomposition.
     */
    public LinearSolverQrHouseTran() {
        decomposer = new QRDecompositionHouseholderTran();
    }
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Related Classes of org.ejml.alg.dense.decomposition.qr.QRDecompositionHouseholderTran

  • org.ejml.alg.block.decomposition.qr.GenericBlock64QrDecompositionTests
  • org.ejml.alg.block.decomposition.qr.TestBlockHouseHolder
  • org.ejml.alg.dense.linsol.qr.LinearSolverQrHouseTran
  • org.ejml.data.DenseMatrix64F
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