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Clarify the doc for column-pivoting QR

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Desire NUENTSA 2013-02-21 13:33:31 +01:00
parent 986f60127d
commit 59f9400420
1 changed files with 6 additions and 6 deletions
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12
Eigen/src/QR/ColPivHouseholderQR.h
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@ -146,8 +146,9 @@ template<typename _MatrixType> class ColPivHouseholderQR
return m_qr; return m_qr;
} }
/** \returns a reference to the matrix where the Householder QR is stored /** \returns a reference to the matrix where the result Householder QR is stored
* To get the triangular factor R, use * \warning The strict lower part of this matrix contains internal values.
* Only the upper triangular part should be referenced. To get it, use
* \code matrixR().template triangularView<Upper>() \endcode * \code matrixR().template triangularView<Upper>() \endcode
* For rank-deficient matrices, use * For rank-deficient matrices, use
* \code * \code
@ -353,9 +354,9 @@ template<typename _MatrixType> class ColPivHouseholderQR
/** \brief Reports whether the QR factorization was succesful. /** \brief Reports whether the QR factorization was succesful.
* *
* \note This routine is provided for uniformity with other factorization modules * \note This function always returns \c Success. It is provided for compatibility
* \returns \c Success if computation was succesful, * with other factorization routines.
* \c NumericalIssue if the QR can not be computed * \returns \c Success
*/ */
ComputationInfo info() const ComputationInfo info() const
{ {
@ -371,7 +372,6 @@ template<typename _MatrixType> class ColPivHouseholderQR
RowVectorType m_temp; RowVectorType m_temp;
RealRowVectorType m_colSqNorms; RealRowVectorType m_colSqNorms;
bool m_isInitialized, m_usePrescribedThreshold; bool m_isInitialized, m_usePrescribedThreshold;
mutable ComputationInfo m_info;
RealScalar m_prescribedThreshold, m_maxpivot; RealScalar m_prescribedThreshold, m_maxpivot;
Index m_nonzero_pivots; Index m_nonzero_pivots;
Index m_det_pq; Index m_det_pq;