[R] multcomp, simint, simtest and computation duration

[Torsten Hothorn]

> Dear R-listers,
>
> I am trying to compute simultaneous confidence intervals with simint from the package multcomp. 230 measures (abundance) have been taken in 23 sites (factor) of a data.frame (donnees: a file can be sent on request, saved with save(donnees,file="donnees")). I would like to get all pairwise comparisons with :
>
> mc<- simint(ren~ID,type="Tukey",data=donnees)
>

you try to solve a (23^2  - 23) = 506 dimensional integration problem via
some form of Monte-Carlo technique. If the sample sizes in are balanced,
you can use the `TukeyHSD' function.

Torsten

> I cannot get a result in a reasonable time (after 2 hours the computer was still working and I interrupted the process).
>
> Can anybody tell me if there is some capacity limitation for simint (as well as for simtest)? Multicomp of Splus handles the problem adequately in a short time, but Splus is practically not accessible for student training...
>
> Kind regards,
>
> Patrick Giraudoux
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
>
>