You are in fact using the contributed package 'nlme', not just R.
Please read both the section on BUGS in the FAQ and the posting guide, and send a reproducible example to the nlme maintainer.
One thing the posting guide asks for is a useful subject line. Something like
`A crash when using nlme'.
On Thu, 28 Apr 2005, Revilla,AJ (pgt) wrote:
Dear all,
I am trying to fit a nonlinear model with a autocorrelation term, but everytime I type in the command, I got an error message from Winwows and R closes itself. The command line is as follows:
mod1<-nlme(V~A*exp(-B*A.O)*Vac.t.1.,data,fixed=A+B~1,random=A+B~1|ORDINAL,+ correlation=corCAR1(0.3179,~A.O|ORDINAL,TRUE),start=c(A=1.2,B=0.2))
I have already fitted this model allowing Phi to vary while optimizing, and it was fine, but as soon as I try to keep it fixed (argument "TRUE"), I simply can't
I don't get any error message from R, just a Windows error seying something like "R for windows GUI front-end has detected a problem and has to close". And thatīs it, R is over!
I don't know if I am doing anything wrong, or if it has to be with my system (I have Windows XP Pro), but it looks like a bug in R.
Do you know anything else about this. Thank you very much,
Antonio
-- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595
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