[R-sig-ME] pwrssUpdate Error with new version of lme4

[Rachael Orben]

Hi,

I am also getting the Error: pwrssUpdate did not 
converge in 30 iterations when 
running a binomial model in lme4 with glmer.  
I updated to R 3.0.2 & lme4 due 
to other errors. 

I am running everything on a Mac.

I am at the beginning stages of this analysis, 
so the problem could partly be my 
data set which has very few individuals with 
the condition 0. The error seems to 
be more likely to occur if I include 3 or 4 random 
effects.  Since I have few '0' individuals there 
may only be one or two of them in each of 
the groups modeled by the random effects. 
I have tried incorporating the term control = 
glmerControl(tolPwrss=1e-3), and that 
doesn't always help.

Any ideas what might be causing this error?
Thanks,
Rachael