Hello together, i have a data.frame, like this one: No. Change Date A 123 final 2013-01-15 B 123 error 2013-01-16 C 123 bug fixed 2013-01-17 D 111 final 2013-01-12
and now a want a new data.frame which includes only the newest entry for each number. The solution look like this: No. Change Date C 123 bug fixed 2013-01-17 D 111 final 2013-01-12 is there any way to filter my data.frame to the latest data, perhabs "max"? Thanks. Mat -- View this message in context: http://r.789695.n4.nabble.com/Filter-according-to-the-latest-data-tp4657248.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.