[Numpy-discussion] missing array type

Colin J. Williams cjw at sympatico.ca
Mon Feb 27 19:30:00 CST 2006


Sasha wrote:

>It looks like what you want is a zero-stride array that I proposed
>some time ago. See "zeros in strides" thread
><http://sourceforge.net/mailarchive/forum.php?thread_id=9629046&forum_id=4890>.
>
>I've posted a patch to the list, but it was met with a mild opposition
>from Travis, so I've never committed it to SVN.    The final word was:
>
>"""
>I would also like to get more opinions about Sasha's proposal for
>zero-stride arrays.
>
>-Travis
>"""
>
>If you agree that zero-stride array would provide the functionality
>that you need, it may tip the ballance towards accepting that patch.
>  
>
(-1)  The proposal add complexity.  I don't see the compensating benefit.

Colin W.

>
>On 2/27/06, Alan G Isaac <aisaac at american.edu> wrote:
>  
>
>>The recent discussion of Matlab's repmat
>>plus some recent use of grids leads me to ask:
>>should numpy contain a true repeated array object,
>>where one single copy of the data supports
>>a full set of array operations?  (So that,
>>e.g., repmat(x,(3,2)) would simply point
>>to the x data or, if desired, make a single
>>copy of it.)
>>
>>And actually this seems a special case of
>>a truly space-saving Kronecker product.
>>
>>Cheers,
>>Alan Isaac
>>
>>
>>
>>
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