[Numpy-discussion] Possible Deprecation of np.ediff1d

[Charles R Harris]

On Mon, Aug 27, 2018 at 11:37 AM Robert Kern <robert.kern at gmail.com> wrote:

> On Mon, Aug 27, 2018 at 10:30 AM Tyler Reddy <tyler.je.reddy at gmail.com>
> wrote:
>
>> Chuck suggested (
>> https://github.com/numpy/numpy/pull/11805#issuecomment-416069436 ) that
>> we may want to consider deprecating np.ediff1d, which is perhaps not much
>> more useful than np.diff, apart from having some arguably strange prepend /
>> append behavior added in.
>>
>> Related discussion on SO:
>> https://stackoverflow.com/questions/39014324/difference-between-numpy-ediff1d-and-diff
>>
>> Thoughts?
>>
>
> Huh. Never knew this existed. I'd say about 50% of the time I use
> np.diff(), I'm doing that prepend/append behavior manually (and less
> readably, possibly inefficiently, but most importantly annoyingly).
>

I was thinking we might want to add something to `np.diff`, maybe using
`np.pad`.

Chuck
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