Message-ID: <45866278.8000009@gmail.com>
Date: 2006-12-18T09:42:16Z
From: Joachim Claudet
Subject: Aggregate with numerous factors
Dear list members,
I am facing some problems using the aggregate() function.
I want to calculate a sum and a mean of one variable over the
combination of 12 factors with the aggregate() function to avoid loops
but it doesn't work (or the job is far too long, it exceeds 2 hours). It
works with a fewer number of factors, so I constructed a factor being
the levels combination of 7 factors (I need the other ones being on
their own). I had then 6 factors, but it still doesn't work.
Could someone tell me how to fix the problem or know another function I
could use ?
Thank you very much,
Joachim Claudet.
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Joachim Claudet
PhD
EPHE - CNRS FRE 2935
52, avenue Paul Alduy
66860 Perpignan cedex
Tel : 33 4 68662055
Fax : 33 4 68503686
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