Try the function vif() from the package "car" to get variance inflation factors. Best, Jens Prof. Dr. Jens Krüger Darmstadt University of Technology Department of Law and Economics Empirical Economics Marktplatz 15 Residenzschloss D-64283 Darmstadt Germany Tel.: +49/6151/16-3693 Fax: +49/6151/16-3897 Email: jjk(a)vwl.tu-darmstadt.de ----- Ursprüngliche Mail ----- Von: "Kosuke Imai" <kimai(a)Princeton.Edu> An: "Casey Klofstad" <klofstad(a)gmail.com> CC: zelig(a)lists.gking.harvard.edu Gesendet: Donnerstag, 28. April 2011 14:06:08 Betreff: Re: [zelig] test for multicollinearity in Zelig There is no built-in test in Zelig but any test that works with lm object (from other packages) should work. Kosuke Imai Princeton University http://imai.princeton.edu Sent from my iPhone On Apr 27, 2011, at 1:20 PM, Casey Klofstad <klofstad(a)gmail.com> wrote: - Zelig Mailing List, served by Harvard-MIT Data Center Send messages: zelig(a)lists.gking.harvard.edu [un]subscribe Options: http://lists.gking.harvard.edu/?info=zelig Zelig program information: http://gking.harvard.edu/zelig/ - Zelig Mailing List, served by Harvard-MIT Data Center Send messages: zelig(a)lists.gking.harvard.edu [un]subscribe Options: http://lists.gking.harvard.edu/?info=zelig Zelig program information: http://gking.harvard.edu/zelig/