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vecm
2012 Feb 06
1
lmer with spatial and temporal random factors, not nested
Hi, I am new to this list.
I have a question regarding including both spatial and temporal random
factors in lmer. These two are not nested, and an example of model I
try to fit is
model1<-lmer(Richness~Y+Canopy+Veg_cm+Treatment+(1|Site/Block/Plot)+(1|Year),
family=poisson, REML=FALSE),
where
richness = integer
Y & Treatment = factor
Canopy & Veg_cm = numerical, continous
Site/Block/Plot= factor
Year = integer
I get the following warning message:
Warning messages:
1: In mer_finalize(ans) :
Cholmod war...