On Apr 16, 2011, at 09:52 , Dieter Menne wrote: >> > > Thanks for providing a self-contained example. The error message is really a > bit confusing (anybody around who understands what lme thinks here?),
It's not thinking at all, it's just evaluating a:b (so usual model formula interpretation is partially disabled? Hm, well, multiplying the two continuous variables wouldn't make sense either, I suppose.) and what you see is a variant of > (1:2):(1:2) [1] 1 Warning messages: 1: In (1:2):(1:2) : numerical expression has 2 elements: only the first used 2: In (1:2):(1:2) : numerical expression has 2 elements: only the first used -- Peter Dalgaard Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: [email protected] Priv: [email protected] ______________________________________________ [email protected] 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.
