Estimate the average abundance using Poisson regression with a log link.
Hello, please excuse the simplicity of this question as I am not very good with stats. I am taking a class, using R which I am learning at the same time, and the questions asks us to "Estimate the average abundance using Poisson regression with a log link". I can estimate the abundance from "x", but I can seem to figure out how to get the average abundance in this method. Any suggestions would be welcome as I have spent about 4 hours trying to figure this one out.
Re: Estimate the average abundance using Poisson regression with a log link.
There is a no homework rule, but:
1. "abundance" + "poisson" seems to be an animal species abundance problem in a capture-recapture framework.
2. If so, check out packages 'Rcapture' and 'SPECIES'. They both implement several estimators, such as Burnham and Overton's jacknife or Chao's estimators. (The poisson model is a natural one).
3. Personally, I prefer the first, but this is because I'm more used to it and have never worked with 'SPECIES', just took a look at it.
I don't understand what you mean by "log link" but if it's the use of a log-normal to get improved confidence intervals, package 'SPECIES' implements it, unlike 'Rcapture' that only gives point estimates.