[Numpy-discussion] Emulate left outer join?
Tue Feb 9 16:49:30 CST 2010
On Tue, Feb 9, 2010 at 4:43 PM, Fernando Perez <firstname.lastname@example.org> wrote:
> On Tue, Feb 9, 2010 at 5:02 PM, Robert Kern <email@example.com> wrote:
>> numpy.lib.recfunctions.join_by(key, r1, r2, jointype='leftouter')
> And if that isn't sufficient, John has in matplotlib.mlab a few other
> similar utilities that allow for more complex cases:
The numpy.lib.recfunctions were ported from matplotlib.mlab so most of
the functionality is overlapping, but we have added some stuff since
the port, eg matplotlib.mlab.recs_join for a multiway join, and some
stuff was never ported (rec_summarize, rec_groupby) so it may be worth
looking in mlab too. Some of the stuff for mpl is only in svn but
most of it is released.
Examples are at
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