Hi Sarah, Thanks for getting back to me.Here is an example of my data:SampleData <- structure(list(id = 1:7, value = c(5813L, 8706L, 4049L, 5877L, 1375L, 2223L, 3423L), date = structure(c(4L, 3L, 2L, 1L, 7L, 6L, 5L), .Label = c("05/12/11", "06/05/11", "07-Dec-11", "19-Dec-11", "01/22/2011", "10/19/2011", "31/12/2011" ), class = "factor")), .Names = c("id", "value", "date"), row.names = c(NA, -7L), class = "data.frame")SampleData Thanks for your help:).
On Wednesday, July 29, 2015 1:50 PM, Sarah Goslee <sarah.gos...@gmail.com> wrote: On Wed, Jul 29, 2015 at 2:45 PM, farnoosh sheikhi via R-help <r-help@r-project.org> wrote: > Hi Arun, > Hope all is well with you. I have a data with a column for date.The date > format is mixed. There are date values with Month/Day/Year format and values > with Day/Month/Year format.I don't know how to unify it.I really appreciate > your help.Thanks. You sent this to the R-help list, not just to Arun, so I'm assuming this is an R question. The best way to get help is to provide a sample of your data using dput() and to clearly specify what you would like as the result - "unify" is a bit vague. paste(x, collapse="") could be considered unification, after all. Sarah -- Sarah Goslee http://www.functionaldiversity.org [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.