[SciPy-dev] Sparse feature suggestion: zero-sized sparse matrices
Neilen Marais
nmarais at sun.ac.za
Mon Feb 11 13:13:05 EST 2008
Hi,
On Mon, 11 Feb 2008 11:09:49 -0600, Nathan Bell wrote:
> On Feb 11, 2008 10:50 AM, Neilen Marais <nmarais at sun.ac.za> wrote:
>> It seems normal numpy arrays support the idea of zero-dimension 2-D
>> arrays. Would anyone object to this feature in sparse matrices? If not,
>> I could try to cook up a patch.
>
> You're welcome to try, but I think it would be a nightmare to implement.
>
> I would only object if the necessary changes introduced a large number
> of statements of the form
>
> if shape[0] == 0:
> do strange thing
> else:
> do normal thing
>
> because that sort of thing is difficult to maintain.
>
> On the other hand, there may be a comprehensive solution that resolves
> such matters in a simple and consistent way.
I'll have a looksee soon. Thanks for the heads-up :)
Regards
Neilen
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