[R] Checking collinearity using lmer

[Gustavo Carvalho]

Take a look at vif in the package car.

On Wed, Nov 19, 2008 at 10:00 PM, Crystal McRae <cj_keebs at hotmail.com> wrote:
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>  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.
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> -is there a way to check variance inflation factors or tolerance using lmer?-Or is there a better way?
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