Replicate the row indices? x[rep(seq_len(nrow(x)), k), ]
-- Bert On Tue, Oct 11, 2011 at 12:55 PM, Martin Batholdy <batho...@googlemail.com>wrote: > Hi, > > > is there a way to replicate a data.frame like you can replicate the entries > of a vector (with the repeat-function)? > > I want to do this: > > x <- data.frame(x, x) > (where x is a data.frame). > > > but n times. > > > > And it should be as cpu / memory efficient as possible, since n is pretty > big in my case. > > > > thanks for any suggestions! > ______________________________________________ > 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. > -- "Men by nature long to get on to the ultimate truths, and will often be impatient with elementary studies or fight shy of them. If it were possible to reach the ultimate truths without the elementary studies usually prefixed to them, these would not be preparatory studies but superfluous diversions." -- Maimonides (1135-1204) Bert Gunter Genentech Nonclinical Biostatistics 467-7374 http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm [[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.
