Henrique is correct; entering duplicated(df) will return an index of TRUE or FALSE for every row. TRUE indicates a duplicated row.
df[duplicated(df),] # shows which rows are repeated df[-duplicated(df),] # shows which rows are unique -- View this message in context: http://r.789695.n4.nabble.com/Checking-for-duplicate-rows-in-data-frame-efficiently-tp2288120p2288166.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.
