Re: [R] Indexing on a variable that is a factor

From: Peter Dalgaard <p.dalgaard_at_biostat.ku.dk>
Date: Sat 09 Sep 2006 - 17:08:39 GMT

"Farrel Buchinsky" <fjbuch@gmail.com> writes:

> It is easy to index on numeric variables.
> How does one index on a variable that is a factor?

Er, same way. Unless you attach some novel meaning to "index on". Example?

-- 
   O__  ---- Peter Dalgaard             ุster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
 (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)                  FAX: (+45) 35327907

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Received on Sun Sep 10 03:12:16 2006

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