Hi, I would like to fit a generalized linear mixed model (glmm) with a 3 level response. My data is from a longitudinal study with multiple observations/patient and multiple patients / country. Is there an R package that will fit a proportional odds, continuation ratio, or adjacent categories glmm? Thanks Peter
On Tue, 25 Apr 2006, Peter Tait wrote:> Hi, > > I would like to fit a generalized linear mixed model (glmm) with a 3 > level response. > > My data is from a longitudinal study with multiple observations/patient > and multiple patients / country. > > Is there an R package that will fit a proportional odds, continuation > ratio, or adjacent categories glmm?Those are not GLMs, so the generalization would not be a glmm. It is not even clear what you would want to be random: just the intercepts? Perhaps you need to find literature discussing relevant models and see what software it proposes? -- Brian D. Ripley, ripley at stats.ox.ac.uk 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, UK Fax: +44 1865 272595
Peter, The types of model you are looking to fit are *nonlinear* models. In fact, to be more precise, they are examples of nonlinear ordinal regression models. Check out the nordr package in R. a link to documentation is: http://rss.acs.unt.edu/Rdoc/library/gnlm/html/nordr.html Regards, Mike -----Original Message----- From: r-help-bounces at stat.math.ethz.ch [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Peter Tait Sent: 26 April 2006 03:28 To: r-help at stat.math.ethz.ch Subject: [R] Generalized linear mixed models Hi, I would like to fit a generalized linear mixed model (glmm) with a 3 level response. My data is from a longitudinal study with multiple observations/patient and multiple patients / country. Is there an R package that will fit a proportional odds, continuation ratio, or adjacent categories glmm? Thanks Peter ______________________________________________ R-help at 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