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Further LU test improvements. I'm not aware of any test failures anymore, not even with huge numbers of repetitions.

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Finally the createRandomMatrixOfRank() function is renamed to createRandomPIMatrixOfRank, where PI stands for 'partial isometry', that is, a matrix whose singular values are 0 or 1.
This commit is contained in:
Benoit Jacob
2010-02-23 15:40:24 -05:00
parent 7dc75380c1
commit d92df336ad
6 changed files with 42 additions and 50 deletions
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4
test/qr_colpivoting.cpp
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@@ -36,7 +36,7 @@ template<typename MatrixType> void qr()
typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, MatrixType::RowsAtCompileTime> MatrixQType;
typedef Matrix<Scalar, MatrixType::ColsAtCompileTime, 1> VectorType;
MatrixType m1;
createRandomProjectionOfRank(rank,rows,cols,m1);
createRandomPIMatrixOfRank(rank,rows,cols,m1);
ColPivHouseholderQR<MatrixType> qr(m1);
VERIFY_IS_APPROX(rank, qr.rank());
VERIFY(cols - qr.rank() == qr.dimensionOfKernel());
@@ -64,7 +64,7 @@ template<typename MatrixType, int Cols2> void qr_fixedsize()
typedef typename MatrixType::Scalar Scalar;
int rank = ei_random<int>(1, std::min(int(Rows), int(Cols))-1);
Matrix<Scalar,Rows,Cols> m1;
createRandomProjectionOfRank(rank,Rows,Cols,m1);
createRandomPIMatrixOfRank(rank,Rows,Cols,m1);
ColPivHouseholderQR<Matrix<Scalar,Rows,Cols> > qr(m1);
VERIFY_IS_APPROX(rank, qr.rank());
VERIFY(Cols - qr.rank() == qr.dimensionOfKernel());