[R] how to analyze repeated measures count data?
René Mayer
mayer at psychologie.tu-dresden.de
Mon Mar 22 15:31:05 CET 2010
Dear R community,
I've data-set with reaction times and count data (answers - yes, no)
of N subjects under conditions A, B.
For the analysis reaction time I used aov.
fit.rt = aov(rt ~ A * B + Error(subjects/(A*B)), data = m )
But how do I analyze the frequencies correctly?
example fable of frequencies from one subject:
, , = A1
B1 B2 B3
yes 31 36 19
no 22 27 10
, , = A2
B1 B2 B3
yes 22 27 10
no 31 36 19
Is a generalized linear model the right method?
How do I specify the same model for the count data (frequencies) in glm?
is this right: glm(count~A*B*answer+(1|subject),family=poisson)?
Regards, René
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