On Jul 29, 2017 12:55, "Nathaniel Smith" <n...@pobox.com> wrote:
I'd also like to see a more detailed motivation for this. And, if it is useful, then that would make 3 operations that have special case pairwise moving window variants (subtract, floor_divide, true_divide). 3 is a lot of special cases. Should there instead be a generic mechanism for doing this for arbitrary binary operations? Perhaps another method for ufuncs of two arguments? I agree that there should be a generic mechanism since a lack of one is what is preventing me from applying this to masked arrays immediately. It would have to take in some domain filter, like many of the translated masked functions do. A ufunc could provide that transparently. -n On Jul 28, 2017 3:25 PM, "Joseph Fox-Rabinovitz" <jfoxrabinov...@gmail.com> wrote: > I have created PR#9481 to introduce a `ratio` function that behaves very > similarly to `diff`, except that it divides successive elements instead of > subtracting them. It has some handling built in for zero division, as well > as the ability to select between `/` and `//` operators. > > There is currently no masked version. Perhaps someone could suggest a > simple mechanism for hooking np.ma.true_divide and np.ma.floor_divide in as > the operators instead of the regular np.* versions. > > Please let me know your thoughts. > > Regards, > > -Joe > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@python.org > https://mail.python.org/mailman/listinfo/numpy-discussion > > _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@python.org https://mail.python.org/mailman/listinfo/numpy-discussion
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