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port the QR module to PermutationMatrix

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This commit is contained in:
Benoit Jacob
2009-11-17 08:14:54 -05:00
parent 30b610a10f
commit 9f21e2aab7
4 changed files with 17 additions and 23 deletions
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6
Eigen/src/LU/FullPivLU.h
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@@ -594,7 +594,8 @@ struct ei_image_retval<FullPivLU<_MatrixType> >
pivots.coeffRef(p++) = i;
ei_internal_assert(p == rank());
dst.block(0,0,dst.rows(),rank()) = (originalMatrix()*dec().permutationQ()).block(0,0,dst.rows(),rank());
for(int i = 0; i < rank(); ++i)
dst.col(i) = originalMatrix().col(dec().permutationQ().indices().coeff(pivots.coeff(i)));
}
};
@@ -630,8 +631,7 @@ struct ei_solve_retval<FullPivLU<_MatrixType>, Rhs>
typename Rhs::PlainMatrixType c(rhs().rows(), rhs().cols());
// Step 1
for(int i = 0; i < rows; ++i)
c.row(dec().permutationP().indices().coeff(i)) = rhs().row(i);
c = dec().permutationP() * rhs();
// Step 2
dec().matrixLU()