Please provide information as to what version you are using; works fine for me:
> time3=strptime("2009 06 01 00 47 00",format="%Y %m %d %H %M") > time4=strptime("2009 06 01 00 57 00",format="%Y %m %d %H %M") > > diff(c(time3,time4)) Time difference of 10 mins > I have version 2.10.1 On Thu, May 20, 2010 at 12:36 PM, Julian Burgos <jmbur...@uw.edu> wrote: > Dear list, > > I´m calculating time differences between series of time stamps and I noticed > something odd: > > If I do this... > >> time1=strptime("2009 05 31 22 57 00",format="%Y %m %d %H %M") >> time2=strptime("2009 05 31 23 07 00",format="%Y %m %d %H %M") >> >> diff(c(time1,time2),units="mins") > Time difference of 10 mins > > .. I get the correct response in minutes. But if I try the same thing with > different values, say.. > >> time3=strptime("2009 06 01 00 47 00",format="%Y %m %d %H %M") >> time4=strptime("2009 06 01 00 57 00",format="%Y %m %d %H %M") >> >> diff(c(time3,time4)) > Time difference of NA secs > > ...which is not what I´m looking for. The difference should also be 10 > minutes. > > I burned a few neurons (and searched the documentation) and I cannot figure > why this happens. Any ideas? > > All the best, > > Julian > > Julian Mariano Burgos > Hafrannsóknastofnunin/Marine Research Institute > Skúlagata 4, 121 Reykjavík, Iceland > Sími/Telephone : +354-5752037 > Bréfsími/Telefax: +354-5752001 > Netfang/Email: jul...@hafro.is, jmbur...@uw.edu > > [[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. > > -- 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.