[Numpy-discussion] How to merge or SQL join record arrays in Python?
Mon May 11 17:56:00 CDT 2009
On May 11, 2009, at 6:36 PM, Skipper Seabold wrote:
> On Mon, May 11, 2009 at 6:18 PM, Wei Su <firstname.lastname@example.org> wrote:
>> Hi, Pierre:
>> Thanks for the reply. I can now actually turn a big list into a
>> array. My question is actually how to join related record arrays in
>> This is done in SAS by MERGE and PROC SQL and by merge() in R. But
>> I have no
>> idea how to do it in Python.
>> Wei Su
> Does merge_arrays in numpy.lib.recfunctions do what you want?
Probably not. merge_arrays is close to concatenate, and will raise an
exception if 2 fields have the same name (in the flattened version).
Testing R's merge(), join_by looks like the corresponding function.
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