scipy/scipy — pull request #3272 by pv (2014-02-02 16:16:00+00:00)
Title: BUG: sparse: fix bugs in dia_matrix.setdiag

Some bugs in dia_matrix.setdiag slipped through. This PR fixes:

- hide details of the internal dia_matrix data representation in
setdiag(), so that setdiag() behavior is same for all spmatrix types

- fix bugs in resizing self.data, which doesn't always have
self.shape[1]==N

- add scalar broadcasting behavior to setdiag() for all matrix types

- add comprehensive tests