Hi all, I've ventured into the world of nonparametric survival and I would like to use the "maxtime" option for printing and plotting my aareg fit. However, my fit does not have "test.var2" and this stops the print and plot when adding a maxtime. My code is as follows: Response<-Surv(Time,Event) Model<-aareg(Response~Factor1*Factor2) Model2<-aareg(Response~Factor1+Factor2) #Just did this to see if the interaction term had anything to do with it Model, print(Model), summary(Model), and plot(Model) seem to work fine, but as soon as I try summary/print/plot(Model, maxtime=400) it tells me that test.var2 is not found and when I look at summary(Model), there is indeed a NULL under test.var2. Anyone know why it doesn't include test.var2? Is this a compatibility problem? I'm using R version 2.13 (I know it's quite old, but updating is a pain when you don't have admin rights to your computer) and just updated the survival package (no warning messages). Any input would be much appreciated. Cheers, Freya [[alternative HTML version deleted]]