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2006 Feb 27
1
question about lmer--different answers from different versions of R?
...in a previous version? See example below.
I appreciate your help. Please direct answers to tsfeldman@noble.org
Sincerely,
Tracy S. Feldman
Postdoc, The Samuel Roberts Noble Foundation
Example:
The model formulas (same in both):
fitvisit1.1<-lmer(visitsR~dist + ctrt + (1|rep) + (1|field), family =
poisson, method = "ML")
fitvisit1.3<-lmer(visitsR~dist + (1|rep) + (1|field), family = poisson,
method = "ML")
Done in fall 2005 (I forget the most recent version then):
> anova(fitvisit1.1, fitvisit1.3, test = "Chisq")
D...