On 21/06/2007 3:36 PM, Thomas Pujol wrote: > I often need to "combine" data frames, sometimes "vertically" and other times > "horizontally". > > When it "better" to use merge? When is it better to use rbind or cbind? > > Are there clear pros and cons of each approach?
If rbind or cbind work, use them. They are much simpler, but much less flexible. Duncan Murdoch ______________________________________________ R-help@stat.math.ethz.ch 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.
