It depends how your dates are stored, but generally you can just add 365*15 to them. E.g.,
print(x <- Sys.Date()) print(x + 365*15) So for you, dataset$dates <- dataset$dates + 365*15 Michael On Mon, Dec 12, 2011 at 9:39 PM, Ana <rrast...@gmail.com> wrote: > How do I sum 15 years to my dataset? > > original dataset > dates val > 1 2001-01-12 1.2 > 2 2001-02-12 1.2 > 3 2001-03-12 1.2 > > result > dates val > 1 2016-01-12 1.2 > 2 2016-02-12 1.2 > 3 2016-03-12 1.2 > > ______________________________________________ > 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.
