[R] Planned contrast on repeated measures

[Dieter Menne]

Bugzilla from rmh3093 at gmail.com wrote:
> 
> I have an anova model that looks like this:
> 
> aov(log(Y)~X+Error(Participant/X))
> 
> Is there a way to do a planned contrast on a repeated measures
> model... something with an error term? I get an error when I do this:
> contrasts(X)=cbind(-3,-1,1,3)
> summary.lm(aov(log(Y)~X+Error(Participant/X)))
> 
> 

Check the example in se.contrast, and consider switching to nlme/lme for
this type of work. If you need a better answer, post a complete example.

Dieter



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