devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

sparse module:

Browse Source 
* add row(i), col(i) functions
* add prune() function to remove small coefficients
This commit is contained in:
Gael Guennebaud
2009-01-21 18:46:04 +00:00
parent 25f1658fce
commit 52cf07d266
8 changed files with 138 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
Eigen/src/Sparse/SparseBlock.h
View File

@@ -78,6 +78,40 @@ public:
}
};
/** \returns the i-th row of the matrix \c *this. For row-major matrix only. */
template<typename Derived>
SparseInnerVector<Derived> SparseMatrixBase<Derived>::row(int i)
{
EIGEN_STATIC_ASSERT(IsRowMajor,THIS_METHOD_IS_ONLY_FOR_ROW_MAJOR_MATRICES);
return innerVector(i);
}
/** \returns the i-th row of the matrix \c *this. For row-major matrix only.
* (read-only version) */
template<typename Derived>
const SparseInnerVector<Derived> SparseMatrixBase<Derived>::row(int i) const
{
EIGEN_STATIC_ASSERT(IsRowMajor,THIS_METHOD_IS_ONLY_FOR_ROW_MAJOR_MATRICES);
return innerVector(i);
}
/** \returns the i-th column of the matrix \c *this. For column-major matrix only. */
template<typename Derived>
SparseInnerVector<Derived> SparseMatrixBase<Derived>::col(int i)
{
EIGEN_STATIC_ASSERT(!IsRowMajor,THIS_METHOD_IS_ONLY_FOR_ROW_MAJOR_MATRICES);
return innerVector(i);
}
/** \returns the i-th column of the matrix \c *this. For column-major matrix only.
* (read-only version) */
template<typename Derived>
const SparseInnerVector<Derived> SparseMatrixBase<Derived>::col(int i) const
{
EIGEN_STATIC_ASSERT(!IsRowMajor,THIS_METHOD_IS_ONLY_FOR_ROW_MAJOR_MATRICES);
return innerVector(i);
}
/** \returns the \a outer -th column (resp. row) of the matrix \c *this if \c *this
* is col-major (resp. row-major).
*/