I believe that Roman is referring to AUC as the "Area Under Curve" from a Receiver Operating Characteristic.
If this indeed your quantity of interest - it can be calculated in R. You can download code at: http://www.bioconductor.org/repository/release1.5/package/Win32/ and/or http://biostat.ku.dk/~bxc/SPE/library/ Check out the archives - I'm sure there is more there if you search "ROC" instead. Cheers, Joe Quoting Spencer Graves <[EMAIL PROTECTED]>: > What's AUC? If you mean AIC (Akaike Information Criterion), and > if you fit logistic regression using "glm", the help file says that glm > returns an object of class "glm", which is a list containing among other > things an attribute aic. For example, suppose you fit a model as follows: > > fit <- glm(y~x, famil=binomial()...) > > Then fit$aic returns the AIC. > > You may also wish to consider anova and anova.glm. > > hope this helps. spencer graves > > [EMAIL PROTECTED] wrote: > > >Dear R-helper, > > > >I would like to compare the AUC of two logistic regression models (same > >population). Is it possible with R ? > > > >Thank you > > > >Roman Rouzier > > [[alternative HTML version deleted]] > > > >______________________________________________ > >[EMAIL PROTECTED] mailing list > >https://stat.ethz.ch/mailman/listinfo/r-help > >PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > > > > > > -- > Spencer Graves, PhD, Senior Development Engineer > O: (408)938-4420; mobile: (408)655-4567 > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Joseph J. Nocera Ph.D. Candidate NB Coop. Fish & Wildlife Research Unit Biology Department - Univ. New Brunswick Fredericton, NB Canada E3B 6E1 tel: (902) 679-5733 "Why does it have to be spiders? Why can't it be 'follow the butterflies'"?! – Ron Weasley, Harry Potter & The Chamber of Secrets ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html