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 betaWhich 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. -- Sarah Goslee http://www.functionaldiversity.org ______________________________________________ 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.
