[R] cooks distance for repeated measures anova

[Walker Scott Pedersen]

Hi all,

Is there a way to get cook's distance for a repeated measures anova? Neither cooks.distance or CookD from the predictmeans package seem to allow for this.  For example, if I have the model

data(iris)

mod<-aov(Sepal.Length  ~ Petal.Length + Petal.Width + Error(Species), data=iris)

both

cooks.distance(mod)

and

library(predictmeans)
CookD(mod, group=Species)

give an error saying they don't support an aovlist object.

I would prefer a method to get a cook's distance for each category in my repeated factor (i.e. Species), rather than each observation.

Thanks!


--
Walker Pedersen, Ph.D.
Center for Healthy Minds
University of Wisconsin -- Madison


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