[R] Do I need a special package to run LSD tests?

[michal33]

Hi there,
I am trying to run LSD.test(model) 

I used the following commands:
attach(model)
m1<- glm(ttl.m ~ site+year, family=quasipoisson, data= model)
df<-df.residual(m1)
MSerror<-deviance(m1)/df

The following command did not work:
comparison<- LSD.test (ttl.m, site+year, df, MSerror, alpha = 0.05,
group=FALSE)

I get an error message: Error: could not find function "LSD.test" 

Do I need to download a special package for that? Any idea which one? or how
to do it without getting the error message?

All comment will be highly appreciated!
Thanks :)
Michal

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