Hi all,
I have spent some time thinking about things, and discussing them with
folks nearby. I actually got to wondering whether we really need new
dtypes for this. It seems like enumerated values or factor levels could
be cast as an annotation or metadata that could be attached to any
existing integral dtypes. It spells differently enough that I have put
up an alternate version that reflects this notion. I'd like to see what
folks think of this direction:
https://github.com/bryevdv/numpy/blob/enum/doc/neps/enum_alt.rst
So this would require adding machinery to existing dtypes to behave
properly when there is factor metadata present. Perhaps that is not an
acceptable trade-off, but it seems worth discussing.
I think a very similar approach could be used to add categorical ranges
to any numerical or string types (I think they are called "shingles" in R?)
Please let me know what you think.
Bryan
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