[R] rm anova

From: korhan ozkan <korhan_oz_at_yahoo.com>
Date: Sun, 13 Jul 2008 12:19:49 -0700 (PDT)

Dear all,
I am new to r and most happy for now:)
I would like to ask an issue about rm-anova. I have data of an experiment with 24 subjects 3 treatment (8 replicates for each treatment) and 8 sampling through time. data sheet is something like that(just an example, not real).

sample id,response(tp),treatment,date
a1,119,HP,27 june
a2,120,MP,27 june

a3,150,C,27 june
a4,100,C,27 june
a1,90 HP, 7 july
a2,80,MP,7 july
a3,170,C,7 july
a4,50,C,7 july


is it correct to formulize rm-anova as
demo <- aov(tn_mgl ~ factor(TN)*factor(prefix) + Error(sample/(factor(TN)+factor(prefix)))) thanks in advance, best regards
korhan  ozkan

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