I somehow missed Juan's reply. Yes, I think Juan solved the problem.
Thanks, Juan! On Sat, May 25, 2019 at 12:57 AM Robert Kern <robert.k...@gmail.com> wrote: > On Fri, May 24, 2019 at 9:33 PM C W <tmrs...@gmail.com> wrote: > >> Thank you, Robert. I will take it up to the Pandas-dev mailing list. >> >> I'm not sure if I follow you on "right semantics for the shape of the >> output." Range is just a summary statistic which is a number. >> >> I'm not an expert, but wouldn't something like this do? >> def range(vec): >> return np.max(vec) - np.min(vec) >> > > Oh.You referenced the R range() function, which returns the minimum and > the maximum as separate numbers, not their difference. > > https://www.rdocumentation.org/packages/base/versions/3.6.0/topics/range > > And the pandas issue that you referenced was asking for the same. > > In fact, numpy does have the function you are looking for, as Juan noted. > It's called `ptp()` (early numpy developers tended to be more from a signal > processing background than a statistics background). > > -- > Robert Kern > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@python.org > https://mail.python.org/mailman/listinfo/numpy-discussion >
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