Hi
r-help-boun...@r-project.org napsal dne 22.06.2011 20:40:39:
> On 6/22/2011 1:34 PM, Sarah Goslee wrote:
> > On Wed, Jun 22, 2011 at 2:28 PM, David Winsemius
<dwinsem...@comcast.net> wrote:
> >>
> >> On Jun 22, 2011, at 2:03 PM, Sarah Goslee wrote:
> >>
> >>> Hi,
> >>>
> >>> On Wed, Jun 22, 2011 at 11:40 AM, Alexander Shenkin
<ashen...@ufl.edu>
> >>> wrote:
> >>>>>
> >>>>> is.na(strptime("5/2/1992", format="%m/%d/%Y"))
> >>>>
> >>>> [1] FALSE
> >>>>>
> >>>>> is.na(strptime("5/3/1992", format="%m/%d/%Y"))
> >>>>
> >>>> [1] TRUE
> >>>
> >>> I can't reproduce your problem on R 2.13.0 on linux:
> >>
> >> I also cannot reproduce it on a Mac with 2.13.0 beta
> >
> > Which strongly suggests that you should start by upgrading your R
> > installation if at all possible.
> >
> > I'd also recommend trying it on a default R session, with no extra
> > packages loaded, and no items in your workspace. It's possible that
> > something else is interfering.
> >
> > On linux, that's achieved by typing R --vanilla at the command line.
> > I'm afraid I don't know how to do it for Windows, but should be
> > similarly straightforward.
> >
> Thanks Sarah. Still getting the problem. I should surely upgrade, but
> still, not a bad idea to get to the bottom of this, or at least have it
> documented as a known issue. BTW, I'm on Windows 7 Pro x64.
>
Can not reproduce on Windows 2000 on R2.12.0dev (2.13.0 and 2.14.0dev)
> is.na(strptime("5/3/1992", format="%m/%d/%Y"))
[1] FALSE
> sessionInfo()
R version 2.12.0 Under development (unstable) (2010-05-31 r52164)
Platform: i386-pc-mingw32/i386 (32-bit)
locale:
[1] LC_COLLATE=Czech_Czech Republic.1250 LC_CTYPE=Czech_Czech
Republic.1250
[3] LC_MONETARY=Czech_Czech Republic.1250 LC_NUMERIC=C
[5] LC_TIME=Czech_Czech Republic.1250
attached base packages:
[1] stats grDevices datasets utils graphics methods base
other attached packages:
[1] lattice_0.18-8 fun_1.0
loaded via a namespace (and not attached):
[1] grid_2.12.0 tools_2.12.0
>
So either some problem with your installation or your OS.
Regards
Petr
> (running Rgui.exe --vanilla):
>
> > is.na(strptime("5/3/1992", format="%m/%d/%Y"))
> [1] TRUE
>
> > is.na(strptime("5/2/1992", format="%m/%d/%Y"))
> [1] FALSE
>
> > sessionInfo()
> R version 2.12.1 (2010-12-16)
> Platform: i386-pc-mingw32/i386 (32-bit)
>
> locale:
> [1] LC_COLLATE=English_United States.1252
> [2] LC_CTYPE=English_United States.1252
> [3] LC_MONETARY=English_United States.1252
> [4] LC_NUMERIC=C
> [5] LC_TIME=English_United States.1252
>
> attached base packages:
> [1] stats graphics grDevices utils datasets methods base
>
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