[Numpy-discussion] matrix indexing question
Alan G Isaac
aisaac@american....
Mon Mar 26 15:18:04 CDT 2007
>> On Mon, 26 Mar 2007, "Colin J. Williams" apparently wrote:
>>> One would expect the iteration over A to return row
>>> vectors, represented by (1, n) matrices.
> On 3/26/07, Alan G Isaac <aisaac@american.edu> wrote:
>> This is again simple assertion.
>> **Why** would "one" expect this?
>> Some people clearly do not.
On Mon, 26 Mar 2007, Charles R Harris apparently wrote:
> Well, and what should they expect.
Since matrices are an iterable Python object,
we *expect* to iterate over the contained objects.
(Arrays.) I am not sure why this is not evident to all,
but it is surely the sticking point in this discussion.
A matrix is not a container of matrices.
That it acts like one is surprsing.
Surprises are bad unless they have a clear justification.
Perhaps a clear justification exists,
but it has not been offered in this discussion.
Cheers,
Alan Isaac
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