not off topic at all; there are several matters of naming that I am not at all settled on yet, and I don't think it is unimportant.
indeed, those are closely related functions, and I wasn't aware of them yet, so that's some welcome additional perspective. The mathematica function differs in that the keys are always function of the values; as per your example as well. My proposed interface does not have that constraint, but that behavior is of course easily obtained by something like group_by(mapping(values), values). indeed grpstats also has a lot of overlap, though it does not have the same generality as my proposal. its interesting to wonder where one gets ones ideas as to how to call what. ive never worked with SQL much; I suppose I picked up this naming by working with LINQ. I rather like group_by; it is more suitable to the generality of the operations supported by the group_by object than something like grpstats. The majority of my applications for grouping have nothing whatsoever to do with statistics. On Sun, Jan 26, 2014 at 8:44 PM, Alan G Isaac <alan.is...@gmail.com> wrote: > My comment is just on the name. > I'd expect something named `groupby` > to behave essentially like Mathematica's `GatherBy` command. > http://reference.wolfram.com/mathematica/ref/GatherBy.html > > I think you are after something more like Matlab's grpstats: > http://www.mathworks.com/help/stats/grpstats.html > > Perhaps the implicit reference to SQL justifies the name... > > Sorry if this seems off topic, > Alan Isaac > > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinfo/numpy-discussion >
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