Hello Nitin, if you examine the help information for lrm carefully, at the bottom you will find numerous examples that you can follow.
?lrm By the way, asking a queestion like this it's best to clarify if you mean the lrm from the Design package or some other one. I assume it's from Design, as the syntax you quote is a good match. It's also best to study the help files carefully. Andrew On Mon, Nov 13, 2006 at 11:01:59PM -0600, nitin jindal wrote: > Hi, > > I have to build a logistic regression model on a data set that I have. I > have three input variables (x1, x2, x3) and one output variable (y). > > The syntax of lrm function looks like this > > lrm(formula, data, subset, na.action=na.delete, method="lrm.fit", > model=FALSE, x=FALSE, y=FALSE, linear.predictors=TRUE, se.fit=FALSE, > > penalty=0, penalty.matrix, tol=1e-7, > strata.penalty=0, var.penalty=c('simple','sandwich'), > weights, normwt, ...) > > Any logistic regression model would take y and x1,x2,x3 as parameters and > output the model (probabilities). So, I dont know where to fit in these > values in this function. > > Any help is appreciated. I am chasing a deadline in my project. > > Nitin > > [[alternative HTML version deleted]] > > ______________________________________________ > 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 > and provide commented, minimal, self-contained, reproducible code. -- Andrew Robinson Department of Mathematics and Statistics Tel: +61-3-8344-9763 University of Melbourne, VIC 3010 Australia Fax: +61-3-8344-4599 http://www.ms.unimelb.edu.au/~andrewpr http://blogs.mbs.edu/fishing-in-the-bay/ ______________________________________________ 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 and provide commented, minimal, self-contained, reproducible code.