I am running a logistic regression model with a random effect using lmer. I
am uncertain how to check for collinearity between my parameters. I have
already run cor() and linear regression for each combination of parameters, and
all Rsqr values were <0.8
.but I am analyzing ecological data so a 0.8 cutoff
may be unrealistic.
-is there a way to check variance inflation factors or tolerance using lmer?-Or
is there a better way?
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