Hi Katja,
try fitting the original model using ML (not REML) with the parameter
method = "ML":
PModell1 <-lme(sqrt(Earthwormsm.2)~
Treatment+Pflanzenfrischmasse+aBodenfeuchte+bBodenfeuchte+Gfrischmasse+Ltrockenmasseanteil+KCN+I+Eindringtiefe,
random=~1|Block/Treatment/Cluster/Patch, data=Test
Dear help community,
I'm a R-beginner and use it for my master thesis.
I've got a mixed model and want to analyse it with lme. There are a lot
Cofactors that coult be relevant. To extract the important ones I want to do
the stepAIC, but always get an error warning.
Structure of my data:
data.fram
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