Message-ID: <494E7D4B-E05A-48F9-BA69-5E062681022A@gmail.com>
Date: 2016-04-28T13:38:51Z
From: Faradj Koliev
Subject: Robust clustered errors for probit ordinal regression analysis
Dear all,
I?ll need your help with obtaining robust clustered errors. I use polr command in MASS package m<?porl(y~x1+x2,data=mydata, method=probit). In the rms package, this is as simple as: clusterSE<?robcov(m, mydata$id). Is it possible to do something similar for polr object as well? Thank you very much
Best,
Faradj
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