[R-sig-ME] new R user struggling with error and convergence issues

Jennifer Yourkavitch jenyourkavitch at yahoo.com
Mon Feb 15 20:22:40 CET 2016

I am fitting multilevel log-binomial models for a very large dataset (>53,000 observations), using glmer. I am getting this--  Error: (maxstephalfit) PIRLS step-halvings failed to reduce deviance in pwrssUpdate.
And the model is not converging. 
I think that increasing the number of iterations may remediate the convergence issue. But I can’t find the right syntax for that online.
Any advice re these two issues?
Many thanks,

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