mydf[mydf < 0] <- 0 or
mydf$A[mydf$A < 0] <- 0 depending on what exactly you want. Note: this is the kind of operation for which there are many possible equivalent solutions, and many tweaks possible depending on how you want to deal with NA value, etc. Sarah On Wed, Dec 19, 2012 at 10:03 AM, Mat <matthias.we...@fnt.de> wrote: > Hallo together, > > i have a data.frame like this one. > A > 1 3 > 2 -2 > 3 1 > > and now i want to convert the negative number to 0. > > A > 1 3 > 2 0 > 3 1 > > How can i do this? > > Thanks. > Mat > > -- Sarah Goslee http://www.functionaldiversity.org ______________________________________________ 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.
