Dear Laura,
I've modified vif() in the development version of the car package on R-Forge
so that it works with a wider variety of models, including gls models. Once
the package is built on R-Forge, which usually takes about a day, you can
install it via install.packages("car",
repos="http://R-Forge.R-project.org";). Eventually, the development version
of the car package will be moved to CRAN.
Best,
John
> -----Original Message-----
> From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
> project.org] On Behalf Of Laura Riggi
> Sent: Tuesday, May 20, 2014 9:27 AM
> To: r-help@R-project.org
> Subject: [R] Variation Inflation factor for GLS
>
> Dear all,
> I am running a gls and I would like to check the vif of my model. It
> seems that the vif function in the car package and the vif.mer function
> available online do not work for gls. Would you know of a method to
> measure variance inflation factors for GLS?
> Thank you
> Laura
>
>
>
> [[alternative HTML version deleted]]
>
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