Hello, I am new to glmm and am using nlme to model a mixed effects model for my data. I have 13 species and 15 individuals per species. I am looking at including both species and individuals as random effect factors. While I have multiple measurements at the species level (multiple individuals measured for the same data), I only have 1 measurement at the individual level within any species. This FAQ (https://bbolker.github.io/mixedmodels-misc/glmmFAQ.html) tells me 1|species/individual = intercept varying among species and among individuals within species. In that case, since I have 15 individuals per species, does it make sense to include the individual as a nested factor within species in the random effects? Somewhere else I read that if you do not have repeat measures, it does not make sense to include that factor as a random effect. Any inputs would be appreciated. Thanks and Regards, Sharada
modeling nested random effects with glmm using nlme
1 message · Sharada Ramadass