Displaying 1 result from an estimated 1 matches for "tp4646626p4646967".
2012 Oct 18
2
Assessing overdispersion and using quasi model with lmer, possible?
Hello!
I am trying to model data on species abundance (count data) with a poisson
error distribution. I have a fixed and a random variables and thus needs a
mixed model. I strongly doubt that my model is overdispersed but I don't
know how to get the overdispersion parameter in a mixed model. Maybe someone
can help me on this point. Secondly, it seems that quasi models cannot be
implemented