scalar object bug or feature?
Charles R Harris
charlesr.harris at gmail.com
Wed Oct 18 16:03:32 CDT 2006
On 10/18/06, Alan G Isaac <aisaac at american.edu> wrote:
>
> On Wed, 18 Oct 2006, Keith Goodman apparently wrote:
<snip>
Here's a simpler (?) example:
> >>> x=numpy.random.rand(300,1)>0
> >>> x.sum()
> 300
> >>> sum(x)
> array([44], dtype=int8)
> >>> x=numpy.random.rand(300)>0
> >>> sum(x)
> 300
>
> Alan Isaac
Hmmm, I think sum(x) and x.sum() should behave the same. Note that
In [12]:sum(x, dtype=int)
Out[12]:300
I think sum should stick to the modular arithmetic unless specified
otherwise. But in any case sum(x) and x.sum() should do the same thing.
Chuck
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