Hi all
I am running a 2-way repeated measure anova with 1 between-subjects factor (Group=treatment, control), and 1 within-subject factor (Time of measurement: time1, time2). I extract the results of the anova with:
summary(aov(effect ~ Group*Time + Error=Subj/Time, data=mydata))
Now, this must be clearly a dumb question, but how can I quickly extract in R all the post-hoc t-tests for the simple main effects?
Also, while I am at it, how do I enter in the model a counfounding covariate (e.g., Age)?
And on a different matter, is there a way to receive interactive user input in an R script? Something like "Enter the name of the factor: ", or even more simply "Press <Enter> to see the result of the next analysis"....
thanks in advance for any suggestions!
giuseppe
-- ------------------------ Giuseppe Pagnoni, Ph.D. Dept. of Psychiatry and Behavioral Sciences 1639 Pierce Drive, Suite 4000 WMB Bldg., Atlanta, GA 30322, U.S. phone: 404-712-8431 fax: 404-727-3233 e-mail: [EMAIL PROTECTED]
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