I don't know much about your problem, but if you want help you are going to need to learn to communicate effectively. This may help:
http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity. E Joffe <ejo...@hotmail.com> wrote: >Hello, > > > >[rephrasing and reposting of a previous question (that was not >answered) >with new information] > > > >I have a dataset of 371 observations. > >When I run coxph with numeric variables it works fine. > >However, when I try to add factor (categorical) variables it returns >"Ran >out of iterations and the model did not converge" > > > >Of note, when I restructure all factors to binary variables with dummy >and >use glmnet-lasso the model converges. > > > >Here are examples of the code and output (including summary description >of >the variables): > >> maxSTree.cox <- coxph (Surv(time,status)~Chemo_Simple, data=dataset) > > > >Warning message: > >In fitter(X, Y, strats, offset, init, control, weights = weights, : > > Ran out of iterations and did not converge > > > >> summary (dataset$Chemo_Simple) > > Anthra_HDAC Anthra_Plus ArsenicAtra >ATRA ATRA_GO > > 0 163 2 12 >0 2 > > ATRA_IDA Demeth_HistoneDAC Flu_HDAC Flu_HDAC_plus >HDAC_Clof HDAC_only > > 0 34 37 4 >24 1 > > HDAC_Plus LowArac LowDAC_Clof MYLO_IL11 >Phase1 > > 4 8 30 5 >5 > > SCT StdARAC_Anthra StdAraC_Plus Targeted >VNP40101M > > 0 0 0 13 >23 > > > > > >HELP !!!! > > > [[alternative HTML version deleted]] > >______________________________________________ >R-help@r-project.org 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. ______________________________________________ R-help@r-project.org 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.
