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maxim
2009 Nov 05
0
nested factorial effects in a lme model
...ct (random effect) nested within Species
Temperature (fixed effect with 2 levels) nested within Subject,
crossed with Fatigue
Fatigue (fixed effect with 2 levels) nested within Subject, crossed
with Temperature
So, using the lme function, the model should look something like this:
z <- lme(Umaxcm ~ Species*Temp*Fatigue, random= ~ 1 | Lake/Species/Sub/
(Temp*Fatigue))
The problem is how to specify that the Temp*Fatigue factorial
treatments are nested within Subject (each subject was tested at both
temperatures at both fatigue levels). Using the above formula is not
correct (it gives...