[R] Output from file.info()$mtime

Sarah Goslee sarah.goslee at gmail.com
Fri Aug 8 00:46:46 CEST 2014


Are you aware you have so-called smart quotes in your R code? That can
cause all sorts of interesting errors, though I don't get the exact
one you report.

Sarah

On Thu, Aug 7, 2014 at 6:37 PM, Fisher Dennis <fisher at plessthan.com> wrote:
> R 3.1.1
> OS X (and Windows)
>
> Colleagues
>
> I have some code that manages files.  Previously (as late as 3.1.0), the command:
>         file.info(FILENAME)$mtime == “”
> yielded T/F
>
> Now, it triggers an error:
>         Error in as.POSIXlt.character(x, tz, ...) :
>           character string is not in a standard unambiguous format
>
> I looked through Peter Dalgaard’s list of changes in 3.1.1 and I cannot find anything that would explain the change between versions.  I have fixed the problem.  However, I am concerned that other problems may be lurking (i.e., the changes might affect other commands).
>
> Of note, I ran:
>         str(file.info(FILENAME)$mtime)
> in both versions of R and the results did not differ
>
> Can anyone explain what changed so that I can search my code efficiently?
>
> Thanks in advance.
>
> Dennis
>
>
> Dennis Fisher MD
> P < (The "P Less Than" Company)
> Phone: 1-866-PLessThan (1-866-753-7784)
> Fax: 1-866-PLessThan (1-866-753-7784)
> www.PLessThan.com
>

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



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