On Apr 16, 2013, at 9:52 AM, Chris82 <rubenba...@gmx.de> wrote:
> Hi R users, > > I have mentioned that R is getting slower if a process with a loop runs for > a while. Is that normal? > Let's say, I have a code which produce an output file after one loop run. > Now after 10, 15 or 20 loop runs the time between the created files is > stongly increasing. > Is there maybe any data which fill some memory? Possibly, but I were to put money on it, I'd guess there's an ever-expanding object problem: x <- NULL for(i in 1:1e6) x <- c(x, rnorm(1)) which is not-so-secretly quadratic and should instead be: x <- rnorm(1e6) Perhaps a small reproducible example would help us help you. Michael > > > Chris > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/R-process-slow-down-after-a-amount-of-time-tp4664358.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.
