Can you dput() your data frame? There are a different few time objects in R and details might depend which one you have. Though, if it's printing like that, I'd guess it's actually a string that you can convert to a Date using as.Date(, format = XXX) where you can work out the formatting from the documentation in ?strptime.
Michael On Wed, Nov 16, 2011 at 9:12 AM, arunkumar1111 <akpbond...@gmail.com> wrote: > Hi > > I have a data frame and i need to change the date format in it. > my dataframe > > X Date > 1 1/1/2009 > 2 2/1/2009 > 3 3/1/2009 > > I need to change it to 2009-01-01 > > > -- > View this message in context: > http://r.789695.n4.nabble.com/changing-date-format-in-a-dataframe-tp4076411p4076411.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. > ______________________________________________ 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.