baptiste auguie-2 wrote: > > > ddply(d, .(website), transform, count = table(user_id)) # why two new > columns? > >
Try this to see why: as.data.frame(table(d$user_id)) This works more like you expect: ddply(d, .(website), transform, count = unclass(table(user_id))) - Tom -- View this message in context: http://www.nabble.com/plyr-and-table-question-tp22865174p22868047.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.
