[R-sig-ME] (maxstephalfit) PIRLS step-halvings failed to reduce deviance in pwrssUpdate
killver at gmail.com
Wed Jun 29 18:31:11 CEST 2016
After the discussions over the previous few days regarding my count data
modeling, I am currently following a two-step hurdle model approach
where my first goal is to model the binary data with a binomial model.
However, when I incorporate one of my explanatory variables I end up
with the following error:
Error in eval(expr, envir, enclos): (maxstephalfit) PIRLS step-halvings
failed to reduce deviance in pwrssUpdate
For the other one, it works fine. Strangely, if I include it also as
random effect, it also appears to work.
I have also tried to use glmmTMB, and also glmmADMB.
I have also some troubles when modeling the non-zero data with nbinom or
I have summarized most in a notebook:
Data can be found here:
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