[Numpy-discussion] Antwort: Re: why does binary_repr don't support arrays
markus.proeller at ifm.com
markus.proeller at ifm.com
Thu Oct 22 07:45:46 EDT 2009
numpy-discussion-bounces at scipy.org schrieb am 22.10.2009 12:36:46:
> >
> >
> > On Tue, Oct 20, 2009 at 11:17 AM, <markus.proeller at 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
>
Okay, I opened a new ticket:
http://projects.scipy.org/numpy/ticket/1270
Markus
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