On Sat, 2005-03-26 at 20:36 -0500, John Sorkin wrote: > R 2.0.1 > Linux > > I am using rlm() to fit a model, e.g. fit1<-rlm(y~x). My model is more > complex than the one shown. > > When I enter summary(fit1) > I get estimates for the model's coefficients along with their SEs, and > t values, but no p values. The p value column is blank. > Similarly, when I enter anova(fit1) I get DF, Sum Sq, Mean Sq, but the > column for F value and Pr(>F) are blank. > > Any suggestions that will allow me to get the p values for summary, the > F and p values for anova? > Thanks, > John
John, Perhaps these two posts may be of help to you: http://tolstoy.newcastle.edu.au/R/help/04/10/5260.html http://tolstoy.newcastle.edu.au/R/help/04/10/5252.html I also located via a Google search the f.robftest() function in the 'sfsmisc' package on CRAN: http://finzi.psych.upenn.edu/R/library/sfsmisc/html/f.robftest.html but I would have to defer to the respective authors as to the pros and cons of any of these approaches. HTH, Marc Schwartz ______________________________________________ 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