Re: [R] using near-zero probabilities in optimization

2010-03-10 Thread Benedikt Gehr, Institut für Evolutionsbiologie und Umweltwissenschaften
Dear Ben I haven't looked at the profiles yet, I'm not sure how to. I'm doing population reconstruction from age-at-harvest data. I'm using a multinomial distribution to model the observed harvest numbers. But I didn't know about the Dirichlet-Multinomial so far. I think that might really be a

Re: [R] using near-zero probabilities in optimization

2010-03-09 Thread Ben Bolker
Benedikt Gehr ieu.uzh.ch> writes: > > Hi there > > I am using mle2 for a multinomial likelihood optimization problem. My > function works fine when I'm using simulated data, however my cell > probabilities of the true data for the multinomial likelihood are > sometimes very small (in some ca