[SciPy-dev] bug(?) in scipy.sparse

Ed Schofield schofield at ftw.at
Sun Dec 4 10:47:05 CST 2005

On 04/12/2005, at 10:21 AM, Andrew Straw wrote:

> I've written a test which fails with current scipy. Although I'm no
> sparse matrix expert, I think this is a valid bug. Please feel free to
> include this test in test_sparse.py under the scipy license.

Yes, you're right ... there's something very fishy about the CSC  
matrix conversion.  It seems that it doesn't handle columns of zeros  
correctly.  I'll look into it further and get back you.

Thanks for the catch, and the test!
-- Ed 

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