Thank you, but: - How do I create a condition object watching for memory overflow? Or, alternatively, excess time? - How do I tell R to end the current lapply item, clean up memory and proceed to the next item? (I know I can write a wrapper function including gc() and direct lapply to that wrapper function. But what do I do to stop ONLY the original function, not the whole R process?)
Joachim > ?tryCatch > > Bert Gunter > Genentech Nonclinical Biostatistics > > > > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] > On > Behalf Of Joachim Harloff > Sent: Wednesday, February 17, 2010 7:00 AM > To: r-help@r-project.org > Subject: [R] skip lapply item for conditions(RAM, execution time) > > Hi, > > I use lapply with a function from a package, and every 20th to 50th > function > execution (out of 500 to 10 000 times) fails for some unknown reason. > RAM > consumption ever increases (out of limit) and execution time is endless. > I > am not going to debug the package. (I rather feel like an end-user.) > > If it was Java, I'd wrap the function in a try...catch statement like > about > > try{ > for(i=1;i<=10000;i++){ > dofunction(i); > } > } > catch(outofmemoryexception e){ > kill(dofunctioninstance); > gc(); > next; > } > > > I did not find out how to construct this in R. Is anyone so kind to > point me > to a documentation more exhaustive than help(conditions)? Or otherwise > provide a snippet of R code? > > Regards, Joachim > > ______________________________________________ > 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.