i found it it is the function difftime(date1,date2) thank you gays!!!
________________________________ De : Peter Konings <peter.l.e.koni...@gmail.com> Envoyé le : Jeudi, 6 Août 2009, 11h44mn 09s Objet : Re: [R] opration / dates in R Hi, There are a number of possibilities. Check out the R wiki for an overview of the available manuals, articles, etc. on working with dates: http://wiki.r-project.org/rwiki/doku.php?id=guides:times-dates&s=dates also, consider reading a book or manual to get started - this will save you a lot of time in the end. See for example the R website for a list of contributed documentation: http://cran.r-project.org/other-docs.html HTH Peter. wrote: Hi, > >how can i use operation + , - , / with veriable format DATES? > >for example i have two variable a <- 18/08/2008 and b <- 18/09/2010 and i want >to calculate a-b ?? > >thank you? > > > > [[alternative HTML version deleted]] > >______________________________________________ >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. > [[alternative HTML version deleted]]
______________________________________________ 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.
