Hi there, I think I'm struggling with a fairly simple problem but can't seem to solve it. I have multiple observations for one unique identifier. Ultimately I want to end up with one line per identifier with multiple observations in rows. I'm really stuck any help would be really appreciated.
CAO0337134 05/09/95 CAO0337134 27/09/05 CAO0347741 10/10/04 CAO0347741 12/10/04 CAO0367128 11/07/05 CAO0367128 12/07/05 CAO0367128 14/07/05 CAO0367128 19/09/97 CAO0367128 20/09/97 CAO0374110 14/11/89 CAO0374110 17/11/89 CAO0374779 01/10/99 CAO0374779 28/09/99 CAO0374779 29/09/99 Thanks Natalie -- View this message in context: http://n4.nabble.com/Rearranging-a-data-frame-for-multiple-observations-tp1562780p1562780.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.