Hi,

how do i efficiently swap rows/columns for the sparse
type Eigen::DynamicSparseMatrix< double >?

The dense approach via

A.row(0).swap(A.row(1));

does not work.

thanks for any help,
carsten

indeed, that's missing and could be done efficiently. Please feel free to add a feature request there: http://eigen.tuxfamily.org/bz