I hope this helps
my.df<-read.table(stdin(), head=T, sep=" ") V5 V5.1 V5.2 V5.3 V5.4 V5.5 -5890.18905 -6019.84665 -6211.06545 -6198.9353 -6616.8677 -6498.7183 -5890.18905 -6019.84665 -6211.06545 -6198.9353 -6616.8677 -6498.7183 -5890.18905 -6019.84665 -6211.06545 -6198.9353 -6616.8677 -6498.7183 -5890.18905 -6019.84665 -6211.06545 -6198.9353 -6616.8677 -6498.7183 -5890.18905 -6019.84665 -6211.06545 -6198.9353 -6616.8677 -6498.7183 -5890.18905 -6019.84665 -6211.06545 -6198.9353 -6616.8677 -6498.7183 -5890.18905 -6019.84665 -6211.06545 -6198.9353 -6616.8677 -6498.7183 -5890.18905 -6019.84665 -6211.06545 -6198.9353 -6616.8677 -6498.7183 -5890.18905 -6019.84665 -6211.06545 -6198.9353 -6616.8677 -6498.7183 -5890.18905 -6019.84665 -6211.06545 -6198.9353 -6616.8677 -6498.7183 number.of.records<-5 my.df.subset<-my.df[sample(1:dim(my.df)[1], size=number.of.records, replace=F),] my.df.subset You can change "replace" by T if you allow repeat rows. Cheers, miltinho astronauta brazil On 7/23/08, Jarekj <[EMAIL PROTECTED]> wrote: > > Hi > I'm looking for solution or function which I can use to sample data frame, > to obtain new (smaller) data frame similar to sample() function > Jarek Jasiewicz > > ______________________________________________ > 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<http://www.r-project.org/posting-guide.html> > and provide commented, minimal, self-contained, reproducible code. > [[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.
