Vlatka Matkovic Puljic <v.matkovic.puljic <at> gmail.com> writes:
> > That was also my first thought. > But I guess it has something to do with W and phihat > (which I'm struggling to check Again, it would help to post a reproducible example ... hard to debug/diagnose by remote control. If you can't possibly post the data to the list, or put them on a web site somewhere, or randomize them a bit so you're not giving anything away, or find a simulated example that shows the same problem, you could as a last resort send them to me. Ben Bolker ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.