From ripley at stats.ox.ac.uk  Wed Sep 10 23:20:10 2008
From: ripley at stats.ox.ac.uk (ripley at stats.ox.ac.uk)
Date: Wed, 10 Sep 2008 23:20:10 +0200 (CEST)
Subject: [Rd] (PR#12770) format() under Windows giv wrong resuts with
Message-ID: <20080910212010.6F000282EFF6@mail.pubhealth.ku.dk>

On Wed, 10 Sep 2008, ripley at stats.ox.ac.uk wrote:

> On Windows XP SP3
>
>> format(pippo, format="%I:%M:%S %p")
> [1] "11:43:12 PM"
>
> In any case, if there is a problem it is in Windows, not in R, since this
> is an Windows service that is being called.  So there is no evidence at
> all of any bug in R here.

Let me add that this might be a locale-specific issue: the locale was not 
given (despite being part of the 'at a minimum' information asked for in 
the posting guide). Note that the help page does say

      '%p' AM/PM indicator in the locale.  Used in conjuction with '%I'
                           ^^^^^^^^^^^^^
Not all locales have such an indicator (usually those that use a 24-hour 
clock).

> On Wed, 10 Sep 2008, pego.enrico at tiscali.it wrote:
>
>> Full_Name: Enrico Pegoraro
>> Version: 2.7.2
>> OS: Windows
>> Submission from: (NULL) (87.4.187.101)
>>
>>
>> The
>> format(timevar,format="%I:%M:%S %p")
>> instruction, with "timevar" a "POSIXt"  "POSIXlt" variable, give wrong return
>> data.
>> The format sentence string "%I:%M:%S %p" requires times with AM/PM indicator,
>> but the resulting output doesn't contain it.
>> Example:
>>> pippo=strptime("23:43:12", format="%H:%M:%S")
>>> pippo
>> [1] "2008-09-10 23:43:12"
>>> class(pippo)
>> [1] "POSIXt"  "POSIXlt"
>>> format(pippo, format="%I:%M:%S %p")
>> [1] "11:43:12 "
>>
>> Note that in linux version of R format() works correctly.
>> Best regards
>> Enrico
>>
>> ______________________________________________
>> R-devel at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>
>
> -- 
> Brian D. Ripley,                  ripley at stats.ox.ac.uk
> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272866 (PA)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595



[Rd] (PR#12770) format() under Windows giv wrong resuts with
ripley at stats.ox.ac.uk