R help - Jan 2004 - multcomp, simint, simtest and computation duration

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)

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]]

> 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]]
>
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