[Numpy-discussion] Uncomfortable with matrix change

Alan G Isaac aisaac@american....
Sat May 10 11:24:00 CDT 2008


>> On Sat, 10 May 2008, Jarrod Millman wrote:
>>> unless there are major objections, I am going to back out 
>>> the matrices changes in the 1.1 branch. 

> On Sat, May 10, 2008 at 8:08 AM, Alan G Isaac 
> <aisaac@american.edu> wrote:
>> If these are backed out, will some kind of deprecation 
>> warning be added for scalar indexing, as Travis 
>> suggested?  Robert's request seems in accord with this. 

On Sat, 10 May 2008, Keith Goodman apparently wrote:
> Shouldn't a deprecation warning explain what the future 
> behavior will be?

I do not think so.  I think the warning should say:
"use x[0,:] instead of x[0] to return row 0 as a matrix."

> Is there a firm consensus on what that behavior will be?

My understanding of the plan:

        - step 1: scalar indexing and iteration returns 1d 
          arrays.
        - possible step 2: scalar indexing and iteration 
          return "oriented" 1d-array-like objects ("vectors")
          suitable for linear algebra.

Personally, I only care that step 1 is achieved.

Cheers,
Alan Isaac





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