[Numpy-discussion] histogram2d error with empty inputs
Ralf Gommers
ralf.gommers at googlemail.com
Wed Jul 6 16:59:18 EDT 2011
On Mon, Jun 27, 2011 at 9:38 PM, Benjamin Root <ben.root at ou.edu> wrote:
> I found another empty input edge case. Somewhat recently, we fixed an
> issue with np.histogram() and empty inputs (so long as the bins are somehow
> known).
>
> >>> np.histogram([], bins=4)
> (array([0, 0, 0, 0]), array([ 0. , 0.25, 0.5 , 0.75, 1. ]))
>
> However, histogram2d needs the same treatment.
>
> >>> np.histogram([], [], bins=4)
> (array([ 0., 0.]), array([ 0. , 0.25, 0.5 , 0.75, 1. ]), array([ 0.
> , 0.25, 0.5 , 0.75, 1. ]))
>
> The first element in the return tuple needs to be 4x4 (in this case).
>
> Could you open a ticket for this?
Ralf
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