[Numpy-discussion] Broadcasting rules (Ticket 76).
oliphant at ee.byu.edu
Thu Apr 27 11:40:10 CDT 2006
Christopher Barker wrote:
> Keith Goodman wrote:
>> Exactly. That's why the OP doesn't need to write a special function in
>> Matlab called SumColumns.
> "Didn't". I haven't used MATLAB for much in years. Back in the day,
> that feature didn't exist. Or at least was poorly enough documented
> that i didn't think it existed. Matlab didn't used to only support 2-d
> arrays as well.
> Anyway, the point was that a (n,) array and a (n,1) array and a (1,n)
> array are all different, and that difference should be preserved.
> I'm still confused as to what behavior Sasha wants that doesn't exist.
I'm not exactly sure. But, one of the things I think he has suggested
(please tell me if my understanding is wrong) is to allow a 2x3 array to
be "broadcast" to a (2n)x(3m) array by repeated copying as needed.
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