Hi A.K, Thanks for your great help. I'm now running your first suggestion on a 600.000 row sample after verifying it works on a smaller sample. It's now been running for 40 minutes. Which method do you think will be faster?
Regards Derk -- View this message in context: http://r.789695.n4.nabble.com/Create-rows-for-columns-in-dataframe-tp4673607p4673704.html Sent from the R help mailing list archive at Nabble.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.
