Question on negative binomial distribution incidence rate
Hi I wonder if anyone can help out with my question?I have a dataset on one endoparasite in fish stomachs in a lake with four different fish phenotypes (Ab, Dw, Pi, Pl). The data fits well to a negative binomial distribution (see graph).I use a generalized regression with negative binomial distribution to analyse (Y) number of parasites in the four fish phenotypes (x1) with body length (x2) as a c...