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I have a question about warning message when using glmer or mixed model in R. When I'm running these functions I get the following warning message: 

Advarselsbesked:
In checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv,  :
  Model failed to converge with max|grad| = 0.00273462 (tol = 0.001, component 7)

Can anyone tell me if I should ignore this massage? And if not, what can I do to fix it?

Nick

Ben Bolker
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  • No, you should not ignor this warning. More advice needs more information from you. – Roland Jan 13 '15 at 14:44
  • https://rpubs.com/bbolker/lme4trouble1 . Can you tell us any more about your problem? – Ben Bolker Jan 13 '15 at 14:45
  • I can show you the function: glmmresult1 <- glmer(Use.avavilable ~ Heightoftree + Treetype + (1 | Ind_Site), data = data_glmm, family = binomial(link = "logit")) Do I need more definitions in the function? – Nick Jan 13 '15 at 15:39

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