[Numpy-discussion] apply 'getitem to each element of obj array?

Neal Becker ndbecker2@gmail....
Thu Apr 5 11:50:17 CDT 2012


Ken Watford wrote:

> On Thu, Apr 5, 2012 at 11:57 AM, Olivier Delalleau <shish@keba.be> wrote:
>> Le 5 avril 2012 11:45, Neal Becker <ndbecker2@gmail.com> a écrit :
>>
>> You can do:
>>
>> f = numpy.frompyfunc(lambda x: x.some_attribute == 0, 1, 1)
>>
>> Then
>> f(array_of_objects_x)
> 
> This is handy too:
> 
> agetattr = numpy.frompyfunc(getattr, 2, 1)
> 
> array_of_values = agetattr(array_of_objects, 'some_attribute')

I suppose for setitem something similar, except I don't think you can do that 
with lambda since lambda doesn't allow an assignment.



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