Loglienar models
Dear Harry, There are two ways to fit loglinear models of which I'm aware and probably more that I don't know: The loglin() function fits loglinear models by IPF; there's a convenient front end, loglm(), in the MASS package (one of the recommended packages). As well, you can fit loglinear models as Poisson generalised linear models using the glm() function. At least in the latter case, you can do model selection via step(). I hope that this helps, John
At 08:58 AM 1/29/2004 -0500, Harry Khamis wrote:
Hello, I'm planning to start using R. Before getting into it, I'd like to ask a couple of questions. Does R carry out loglinear model analysis? That is, will it provide the chi-squared goodness of fit test statistic for a given hierarchical loglinear model? Maybe even do a model selection procedure (like Brown's two-step procedure, or forward/backward selection)? Thanks for your help. ---Harry Khamis --
----------------------------------------------------- John Fox Department of Sociology McMaster University Hamilton, Ontario, Canada L8S 4M4 email: jfox at mcmaster.ca phone: 905-525-9140x23604 web: www.socsci.mcmaster.ca/jfox