[R] Pausing calculations for a fixed amount of time

jim holtman jholtman at gmail.com
Wed May 19 13:50:16 CEST 2010


?Sys.sleep

On Wed, May 19, 2010 at 6:56 AM, Mikkel Grum <mikkel.grum at gmail.com> wrote:
> Is there any way to pause R for a gvien time period, i.e. without the
> need for user intervention? I've got a loop that I want to have work
> as hard as it can as long as there is data coming in, but when there
> is no new data, I would like it to pause before checking again.
> Something like in the following construction:
>
> Set up environment: load libraries,  establish database connections, etc.
> while (time_is_less_than_x) {
>     Check for new data in database
>     if (newdata) {
>         Analyse data (lengthy calculation)
>     } else {
>         pause
>     }
> }
>
> I'm working on Windows Server 2003, but if there is something that
> only works on Linux, that's of interest too.
>
> I am aware of the ask option in par, pause in the package sm, and
> prompt.user in Zelig, but they all require user intervention to start
> again.
>
> Mikkel
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?



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