On Sep 8, 2011, at 03:18 , zhenjiang xu wrote: > Thanks for all your replies. I am using rowsum() and it looks efficient. I > hope I could do some benchmark sometime in near future and let people know. > Or is there any benchmark result available?
I'm a bit surprised that no-one thought of xtabs(x ~ y) It won't win the speed competition, though. -- Peter Dalgaard, Professor Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd....@cbs.dk Priv: pda...@gmail.com ______________________________________________ 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.
