[SciPy-Dev] utility for composing sparse matrices
Mon Sep 20 04:25:25 CDT 2010
Mon, 20 Sep 2010 10:26:58 +0200, Robert Cimrman wrote:
> FYI: I have created a function that creates a sparse matrix from sparse
> (or dense) blocks, somewhat in the spirit of np.r_ and friends, see the
> example below.
> Shall we add it to scipy.sparse? It may help to go around some of the
> fancy-indexing limitations.
Add some tests, and I see no problem in putting it in. Also, I'd check
that cases such as
are handled sensibly.
Also, the equivalent function in `Numpy` is called `bmat`. Should the
name here reflect that.
Also, we would need to think if it is possible to get the sparse matrices
in Scipy to play along with functions in Numpy. (E.g. np.bmat() and
np.linalg.dot() doing the correct stuff for sparse matrices.)
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