Hi All, I am watching a strange behaviour of ISOdatetime. In my work computer, I get NA when I try to do > ISOdatetime(1995,03,26,2,0,0) [1] NA But on other dates and/or times (hour) works OK > ISOdatetime(1995,03,25,2,0,0) [1] "1995-03-25 02:00:00 GMT" In my home computer, I do not have this problem. I am running the same version of R (2.8.1 patched) on both machines, the same version of Gnu Emacs (22.3.1) and the same version of ESS (5.3.10). Both are running Windows XP. Has anyone experienced this before? Pedro
Strange behaviour of ISOdatetime
4 messages · Pedro de Barros, David Winsemius, Tony Plate +1 more
My guess is that your two machines have different setting for locale. What does this produce on each of them: sessionInfo()$locale (Note: It would have been part of the information that you were asked to provide per the posting guide.) --- For questions about unexpected behavior or a possible bug, you should, at a minimum, copy and paste the output from sessionInfo() into your message. When mentioning version numbers, always use the full version number, e.g., `2.6.1', not just `2.6', and also mention the platform (Windows, Linux, MacOS X, with their versions). Other potentially relevant details include the locale (type Sys.getlocale() at the R prompt), and whether you installed a pre-compiled binary version of R or compiled it yourself.
David Winsemius On Feb 10, 2009, at 11:31 AM, Pedro de Barros wrote: > Hi All, > > I am watching a strange behaviour of ISOdatetime. In my work > computer, I get NA when I try to do > > ISOdatetime(1995,03,26,2,0,0) > [1] NA > > But on other dates and/or times (hour) works OK > > ISOdatetime(1995,03,25,2,0,0) > [1] "1995-03-25 02:00:00 GMT" > > In my home computer, I do not have this problem. > I am running the same version of R (2.8.1 patched) on both machines, > the same version of Gnu Emacs (22.3.1) and the same version of ESS > (5.3.10). Both are running Windows XP. Has anyone experienced this > before? > > Pedro > > ______________________________________________ > R-help at 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.
Have you checked that that time exists in the time zone you are using? From ?ISOdatetime: Note ... Remember that in most timezones some times do not occur and some occur twice because of transitions to/from summer time. What happens in those cases is OS-specific. You could try working out what your system is using as the transition to/from summer time. (If you need to generate times that are 2 hours after midnight, try using ISOdatetime to generate the midnight times and add 2 hours). On my system, all this works fine:
ISOdatetime(1995,03,26,2,0,0)
[1] "1995-03-26 02:00:00 MST"
ISOdatetime(1995,03,26,0,0,0) + 2 * 60 * 60
[1] "1995-03-26 02:00:00 MST"
sessionInfo()
R version 2.8.1 (2008-12-22) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] TimeWarp_0.7 abind_1.2-0 trackObjs_0.8-0 tap.misc_1.0 [5] bmc.misc_1.0 RtTests_0.1-5
-- Tony Plate
Pedro de Barros wrote:
Hi All, I am watching a strange behaviour of ISOdatetime. In my work computer, I get NA when I try to do
> ISOdatetime(1995,03,26,2,0,0)
[1] NA But on other dates and/or times (hour) works OK
> ISOdatetime(1995,03,25,2,0,0)
[1] "1995-03-25 02:00:00 GMT" In my home computer, I do not have this problem. I am running the same version of R (2.8.1 patched) on both machines, the same version of Gnu Emacs (22.3.1) and the same version of ESS (5.3.10). Both are running Windows XP. Has anyone experienced this before? Pedro
______________________________________________ R-help at 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.
Sorry for missing this part of the posting guide. It was indeed a problem with the locales. I have fixed it now. Pedro
David Winsemius wrote:
My guess is that your two machines have different setting for locale. What does this produce on each of them: sessionInfo()$locale (Note: It would have been part of the information that you were asked to provide per the posting guide.) --- For questions about unexpected behavior or a possible bug, you should, at a minimum, copy and paste the output from sessionInfo() into your message. When mentioning version numbers, always use the full version number, e.g., `2.6.1', not just `2.6', and also mention the platform (Windows, Linux, MacOS X, with their versions). Other potentially relevant details include the locale (type Sys.getlocale() at the R prompt), and whether you installed a pre-compiled binary version of R or compiled it yourself. -- David Winsemius On Feb 10, 2009, at 11:31 AM, Pedro de Barros wrote:
Hi All, I am watching a strange behaviour of ISOdatetime. In my work computer, I get NA when I try to do
ISOdatetime(1995,03,26,2,0,0)
[1] NA But on other dates and/or times (hour) works OK
ISOdatetime(1995,03,25,2,0,0)
[1] "1995-03-25 02:00:00 GMT" In my home computer, I do not have this problem. I am running the same version of R (2.8.1 patched) on both machines, the same version of Gnu Emacs (22.3.1) and the same version of ESS (5.3.10). Both are running Windows XP. Has anyone experienced this before? Pedro
______________________________________________ R-help at 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 at 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.
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