[R] Any package to perform HLM (PROC GENMOD) like logistic regression in R?
I know there are very nice facilities in Pinhiero and Bates for doing HLM-type modeling for continuous dependent variables. But I would like to be able to do repeated measures logistic regression, or LR on clustered observations (at least with exchangeable correlation structures, and preferably with more general choices of within-cluster correlation structures). Have I missed seeing some package in R that will do this, more or less the way GENMOD does in SAS? I have not found a package to do thus in my scanning thus far. Regards, Will Grove | Psychology Dept. | U. of Minnesota | -+ X-headers have PGP key info.; Call 612.625.1599 to verify key fingerprint before accepting signed mail as authentic! __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Any package to perform HLM (PROC GENMOD) like logistic regression in R?
On Fri, 21 Oct 2005, William M. Grove wrote: I know there are very nice facilities in Pinhiero and Bates for doing HLM-type modeling for continuous dependent variables. But I would like to be able to do repeated measures logistic regression, or LR on clustered observations (at least with exchangeable correlation structures, and preferably with more general choices of within-cluster correlation structures). Have I missed seeing some package in R that will do this, more or less the way GENMOD does in SAS? I have not found a package to do thus in my scanning thus far. Well, you will need to tell us what it is that SAS does (I do have SAS but my licence code needs renewing which shows how little I use it). There are two approaches to repeated measures logistic regression, the subject-specific and population-average approach. Your description sounds closer to the latter, for which see the packages gee and geepack. But GLMMs (the subject-specific approach) are covered in a number of packages including MASS, lme4 and glmmML. My belief is that PROC GENMOD uses the GEE approach, and I would not call that an HLM. To add confusion, there seems to have been a stand-alone program called GENMOD which is referenced in HLM-fitting reviews. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Any package to perform HLM (PROC GENMOD) like logistic
I think you're looking for lmer( ... family=binomial ) in package lme4 by Bates Sarkar. William M. Grove [EMAIL PROTECTED] wrote: I know there are very nice facilities in Pinhiero and Bates for doing HLM-type modeling for continuous dependent variables. But I would like to be able to do repeated measures logistic regression, or LR on clustered observations alan -- Alan B. Cobo-Lewis, Ph.D. (207) 581-3840 tel Department of Psychology(207) 581-6128 fax University of Maine Orono, ME 04469-5742[EMAIL PROTECTED] http://www.umaine.edu/visualperception __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
