What you are reporting is that there are two duplicated dates in your data. 'duplicated' returns a logical vector that is TRUE for the second and subsequent duplicates. Notice what is returned:
> x <- c(1,2,2,3,4,4,5,6,4,7,3) > x[duplicated(x)] [1] 2 4 4 3 > On Thu, Jul 23, 2009 at 8:50 PM, Tim Clark<mudiver1...@yahoo.com> wrote: > > Dear list, > > I just had a function (as.ltraj in Adehabitat) give me the following error: > > "Error in as.ltraj(xy, id, date = da) : non unique dates for a given burst" > > I checked my dates and got the following: > >> dupes<-mydata$DateTime[duplicated(mydata$DateTime)] >> dupes > [1] (07/30/02 00:00:00) (08/06/03 17:45:00) > > Is there a reason different dates would come up as duplicate values? I would > prefer not to have to delete them if I don't have to. Any suggestions on how > to get R to realize they are different? > > Thanks, > > Tim > > > > Tim Clark > Department of Zoology > University of Hawaii > > ______________________________________________ > 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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? ______________________________________________ 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.
