Method qrUpdateRFirstIteration

JSAT/src/jsat/linear/DenseMatrix.java:231–243

(DenseMatrix A, int k, double[] vk, double TwoOverBeta, int M)

    }

    private void qrUpdateRFirstIteration(DenseMatrix A, int k, double[] vk, double TwoOverBeta, int M)
    {
        double[] A_j = A.matrix[k];
        double y = 0;//y = vk dot A_j
        for(int i = k; i < A.cols(); i++)
            y += vk[i]*A_j[i];

        y *= TwoOverBeta;
        A_j[k] -= y*vk[k];
        
        for(int i = k+1; i < M; i++)
            A_j[i] = 0.0;
    }

    @Override
    public void changeSize(int newRows, int newCols)