There is the contrast package On Fri, May 7, 2010 at 5:15 AM, Natalie Holt <[email protected]> wrote: > Hi, > > I have some data on the effect of cycle shape (categorical) and frequency > (continuous) on the efficiency of muscle contraction. My minimum adequate > model is: > > m15<-glm(efficiency~cycle.shape*freq, family=quasipoisson) > > > However, I wish to know where significant differences lie between specific > combinations of treatments. I guess I want an equivalent of a post hoc test > following an ANOVA. Is there a way of doing this for 2 explanatory variables > with an interaction between them and the above error structure. > > Mnay thanks, > > Natalie > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >
-- Max ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
