search for: ika_z6_test

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2012 Mar 21
1
AIC models are not all fitted to the same number of observation
Hi, Using lme from the package nlme 3.1-103, I meet a strange warning. I am trying to compare to models with: library(nlme) lmez6=lme(lepus~vulpes,random=~1|troncon/an,data=ika_z6_test) lmez60=lme(lepus~1,random=~1|troncon/an,data=ika_z6_test) Both have the same number of observations and groups: lmez6 Linear mixed-effects model fit by REML Data: ika_z6_test Log-restricted-likelihood: -2267.756 Fixed: lepus ~ vulpes (Intercept) vulpes 1.35017117 0.04722338 Ran...