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

[Sebastien Moretti]

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