[R] extracting data from a dataframe
Tim Wilson
wilson at visi.com
Fri Aug 2 17:31:46 CEST 2002
Hi everyone,
Here's a question about extracting data from a dataframe:
Let's say I've got a dataframe with two vectors, TEST and GENDER. GENDER
contains a 1 for males and 2 for females. I want to separate the results
of TEST by GENDER so I can compare their means.
What's the most efficient way to do this with R?
-Tim
--
Tim Wilson | Visit Sibley online: | Check out:
Henry Sibley HS | http://www.isd197.org | http://www.zope.com
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wilson at visi.com | <dtml-var pithy_quote> | http://linux.com
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