[R] unexpected "false convergence"

From: Jack Tanner <ihok_at_hotmail.com>
Date: Sat 31 Dec 2005 - 07:50:56 EST

I've come into some code that produces different results under R 2.1.1 and R 2.2.1. I'm really unfamiliar with the libraries in question (MASS and nlme), so I don't know if this is a bug in my code, or a regression in R. If it's a bug on my end, I'd appreciate any advice on potential causes and relevant documentation.

The code:


coder<-gl(2,2,52,labels=c("two","three")) il<-data.frame(id,score,test,coder)


The output under R 2.2.1, which leaves the run object (last line of the code) undefined:

iteration 1
iteration 2
iteration 3
iteration 4
Error in lme.formula(fixed = zz ~ test + coder, random = ~1 | id, data = list( :

        false convergence (8)

Under R 2.1.1, I get exactly 4 iterations as well, but no "false convergence" message, and run is defined.

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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Sat Dec 31 07:57:37 2005

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