On Sun, 2010-05-23 at 00:56 -0700, dusadrian wrote: > This might help, depending on your exact needs: > > v1 <- sample(letters[1:2], 10, replace=TRUE) > > v2 <- sample(letters[3:4], 10, replace=TRUE) > > v3 <- sample(letters[5:6], 10, replace=TRUE) > > aa <- data.frame(v1=v1, v2=v2, v3=v3)
And now is simple, sample the row of data frame aa[sample(1:nrows(aa),3),] -- Bernardo Rangel Tura, M.D,MPH,Ph.D National Institute of Cardiology Brazil ______________________________________________ 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.
