Hello,
I've run 7 candidate models using mixed-effects logistic regression with
the lmer function from the lme4 package, and I'm getting the following
error for 5 of those models: Warning message: In mer_finalize(ans : false
convergence (8). The candidate models all run with the same data, just
slightly different formulas (for AIC model selection). Can anyone explain
this error to me?
This is the command line syntax I'm using:
ful1 <- lmer(<dependent variable> ~ <formula> + (1 | <effect>), data = cv,
family="binomial", na.action = na.omit)
The random intercept effect has 14 groups.
Is there anything I can do to address this error?
<<->><<->><<->><<->><<->><<->><<->>
Peter Singleton
E-mail: psingle...@fs.fed.us
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