Hi, It's my problem, supppose that we have a data.frame: t a b c 1 1 1 1 2 0 1 1 3 1 1 1 4 0 0 0 5 1 0 1 6 0 1 0 7 1 1 1 8 0 1 0
I need extract duplicat row i.e i nedd frame like this a b c 3 1 1 1 8 0 1 0 I try use subset(t, duplicated(t)) and t[duplicated(t), ] but this command return a b c 3 1 1 1 7 1 1 1 8 0 1 0 Best Marcin M. -- View this message in context: http://r.789695.n4.nabble.com/Removing-all-duplicate-row-except-by-one-tp3736949p3736949.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.
