[R] multiple paired t-tests
E.Vettorazzi at uke.uni-hamburg.de
Wed Mar 25 00:55:48 CET 2009
.. and you will end up - in your example- with 60 t-statistics and
p-values (so you do bonforroni adjustment or something like that)?!
Sometimes the question for "How do I ..." should be read as "What is
the question I *really* want to be answered ...". You may consider doing
some more sophisticated analysis.
Dan Kortschak wrote:
> Hi R users,
> I have a very large data set that has two conditioning variables for the
> test I want to perform.
> A toy set can be simulated:
> (though type and class are alphanum)
> I want to perform the three pair-wise t-tests between types for each
> class in data.
> Can someone help me out with this?
> Any help is greatly appreciated.
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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