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...stfood, the model gets at least fitted - although it doesn't converge (yet): > > Warning message: > In mer_finalize(ans) : false convergence (8) > > I would be grateful for any advice on what the problem could be and how to resolve it. > > Thanks, > Tanja Tanja Srebotnjak, PhD, MSc, Dipl. Stat. Postgraduate Fellow Institute for Health Metrics and Evaluation University of Washington 2301 5th Ave, Suite 600 Seattle, WA 98121 Email: tanjas@u.washington.edu<mailto:tanjas@u.washington.edu> Tel: +1-206-897-2866 www.healthmetricsandevaluation.org<http://www.health...

Hello R users: I would like to produce a world map with countries colored according to whether they fall into one of 7 eco-climatic zones. For simplicity, each country is allocated to exactly 1 eco-climatic zone. For this purpose I have looked at the map and mapdata packages, which contain world maps composed of polygons (1 for each country, it seems). Each of the polygons can be referred to by a

Hello, I'm trying to fit a generalized linear mixed model to estimate diabetes prevalence at US county level. To do this I'm using the glmer() function in package lme4. I can fit relatively simple models (i.e. few covariates) but when expanding the number of covariates I usually encounter the following error message. gm8 <-

I've searched the help archives of both lists and apologize if I missed the answer to my question: Is there an update on developing mcmcsamp for glmer? I'm using R v. 2.7.2 (on our Unix server - will hopefully be updated soon) and 2.8.1 on my PC and get the message for both: gm1 <- glmer(cbind(incidence, size - incidence) ~ period + (1 | herd),family = binomial, data = cbpp)