[Numpy-discussion] why does binary_repr don't support arrays
Ralf Gommers
ralf.gommers@googlemail....
Thu Oct 22 05:36:46 CDT 2009
On Tue, Oct 20, 2009 at 11:17 AM, <markus.proeller@ifm.com> wrote:
>
> Hello,
>
> I'm always wondering why binary_repr doesn't allow arrays as input values.
> I always have to use a work around like:
>
> import numpy as np
>
> def binary_repr(arr, width=None):
> binary_list = map((lambda foo: np.binary_repr(foo, width)),
> arr.flatten())
> str_len_max = len(np.binary_repr(arr.max(), width=width))
> str_len_min = len(np.binary_repr(arr.min(), width=width))
> if str_len_max > str_len_min:
> str_len = str_len_max
> else:
> str_len = str_len_min
> binary_array = np.fromiter(binary_list, dtype='|S'+str(str_len))
> return binary_array.reshape(arr.shape)
>
> Is there a reason why arrays are not supported or is there another function
> that does support arrays?
>
Not sure if there was/is a reason, but imho it would be nice to have support
for arrays. Also in base_repr. Could you file a ticket in trac?
Cheers,
Ralf
>
> Thanks,
>
> Markus
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