Dear R-sig-mixed-models mailing list members, I have been using R package 'lme4' to fit a mixed effects logistic regression model and I found it very useful. I am the stage where I would like to run some diagnostics in order to check that my final model can stand. Would you be able to provide me with some advice on which diagnostics I need to run and which code I should use? I don't seem to understand how I could extract leverage, cook's distance, dfbeta etc from a mixed effects logistic regression model or be able to identify literature that explains this. Any help would be greatly appreciated. Looking forward to hearing from you. Sincerely, Stella Mazeri
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