[R] as.POSIXct character string is not in a standard unambiguous format

[Jeff Newmiller]

I cannot imagine a less desirable solution.  This is the opposite of portable programming. 
-- 
Sent from my phone. Please excuse my brevity.

On April 6, 2017 5:29:08 AM PDT, Sebastien Moretti <sebastien.moretti at unil.ch> wrote:
>I have just found the solution.
>
>We have a custom Linux distribution that allows us to have several R (+
>
>glibc and others) versions in parallel for tools related to our job
>domain.
>
>We have another etc/ folder for those tools and R looks for the 
>localtime file there, not in /etc/.
>So linking /etc/localtime to our etc/ folder makes R happy and
>     x <- as.POSIXct("2002-02-02 02:02")
>works fine!
>
>Sébastien
>
>> Hi Ben
>>
>> Thanks for your answer
>> I have already tried this, as well as
>>     x <- as.POSIXct(strptime("2002-02-02 02:02", "%Y-%m-%d %H:%M"))
>> It works! But it does not fix it widely for all tests used during the
>> "make check" step at compile time. Unless I patch all of them.
>>
>> There is something with localtime but I cannot find what.
>>
>> On another machine with another Linux OS, and the same environmental
>> variables
>>    x <- as.POSIXct("2002-02-02 02:02")
>> works fine.
>>
>> Sébastien
>>
>>> Hi,
>>>
>>> I can't answer the question about R 3.3.3, but I don't see anything
>in
>>> the update notes.
>>>
>>> http://mirror.its.dal.ca/cran/doc/manuals/r-release/NEWS.html
>>>
>>> In the meantime, would it skirt your issue if you explicitly stated
>>> the format?
>>>
>>> x <- as.POSIXct("2002-02-02 02:02", format = "%Y-%m-%d %H:%M")
>>>
>>> Ben
>>>
>>>
>>>
>>>> On Apr 5, 2017, at 11:21 AM, Sebastien Moretti
>>>> <sebastien.moretti at unil.ch> wrote:
>>>>
>>>> Hi
>>>>
>>>> I have lots of issues when I try to install R 3.3.3 during the
>"make
>>>> check" step.
>>>>
>>>> Every time a call to as.POSIXct is done in test scripts, I got the
>>>> same error message:
>>>> e.g. x <- as.POSIXct("2002-02-02 02:02")
>>>> Error in as.POSIXlt.character(x, tz, ...) :
>>>>  character string is not in a standard unambiguous format
>>>>
>>>>
>>>> It looks to be linked to localtime but when I compiled R 3.3.2  6
>>>> months ago, the same test scripts were there and succeeded.
>>>>
>>>>
>>>> Is there an environmental variable to use to change the as.POSIXct
>>>> behavior?
>>>>
>>>> Regards
>>>>
>>>> --
>>>> Sébastien
>
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