Don and Jim, Thanks! I got it! Duplicated is only returning one of the two duplicated dates (the second date). It all makes sense now!
Tim Tim Clark Department of Zoology University of Hawaii --- On Fri, 7/24/09, Don MacQueen <m...@llnl.gov> wrote: > From: Don MacQueen <m...@llnl.gov> > Subject: Re: [R] Duplicated date values aren't duplicates > To: "Tim Clark" <mudiver1...@yahoo.com>, r-help@r-project.org > Date: Friday, July 24, 2009, 4:00 AM > Look at results of > > table( mydata$DateTime ) > > and I think you will see that some are duplicated. > Specifically, the > two in your dupes object. > > -Don > > At 5:50 PM -0700 7/23/09, Tim Clark wrote: > >Dear list, > > > >I just had a function (as.ltraj in Adehabitat) give me > the following error: > > > >"Error in as.ltraj(xy, id, date = da) : non unique > dates for a given burst" > > > >I checked my dates and got the following: > > > > > > dupes<-mydata$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. > > > -- > -------------------------------------- > Don MacQueen > Environmental Protection Department > Lawrence Livermore National Laboratory > Livermore, CA, USA > 925-423-1062 > -------------------------------------- > ______________________________________________ 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.
