R help - Dec 2013 - R command execution at specific time from within R

Hello,

I am trying to write a code that executes an R command at specific time
intervals.

É want R to do that instead of the operating system.

Any help/pointer extremely welcome.

Thanks in advance,
Costas

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Costas Vorlow <costas.vorlow <at> gmail.com>
writes:
> I am trying to write a code that executes an R command at specific time
> intervals.
> 
> ? want R to do that instead of the operating system.
> 
> Any help/pointer extremely welcome.
Don't do it.   Just rely on cron [if you're lucky enough to be on Linux 
or OS X]; else rely on Windows Scheduler.  

Write a simple script using RScript, schedule.  Thousands of people do the 
sample.  

Dirk

If you really have to do this within R (see Dirk's reply for other
options) then the tclTaskSchedule function in the tcltk2 package is
one option.  However this can be dangerous if you are using the same
instance of R while waiting.  You might accidentally change something
that affects or is affected by the scheduled code and create a hard to
find bug.


Another is just to use a repeat loop with Sys.sleep for the delays.
This will not allow you to use that instance of R for anything else.



On Mon, Dec 23, 2013 at 8:57 AM, Costas Vorlow <costas.vorlow at
gmail.com> wrote:
> Hello,
>
> I am trying to write a code that executes an R command at specific time
> intervals.
>
> ? want R to do that instead of the operating system.
>
> Any help/pointer extremely welcome.
>
> Thanks in advance,
> Costas
>
>         [[alternative HTML version deleted]]
>
>
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-- 
Gregory (Greg) L. Snow Ph.D.
538280 at gmail.com