R help - Jul 2009 - timer in R?

Hi all,

How could I set a timer in R, so that at fixed interval, the R program
will invoke some other functions to run some tasks?

Thank you very much!

I use Windows. Thank you!

On Wed, Jul 1, 2009 at 12:53 PM, Eduardo Leoni<leoniedu at msu.edu>
wrote:
> I think you are better off writing the R script and invoke it using a
> OS specific tool. For Unix-like systems there is cron.
>
> hth,
>
> -e
>
> On Wed, Jul 1, 2009 at 3:41 PM, Michael<comtech.usa at gmail.com>
wrote:
>> Hi all,
>>
>> How could I set a timer in R, so that at fixed interval, the R program
>> will invoke some other functions to run some tasks?
>>
>> Thank you very much!
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
>
> --
> Science is the art of the soluble. (Peter Medawar)
>

On Wed, Jul 1, 2009 at 8:41 PM, Michael<comtech.usa at gmail.com>
wrote:
> Hi all,
>
> How could I set a timer in R, so that at fixed interval, the R program
> will invoke some other functions to run some tasks?
>
 Use timer events in the tcltk package:
> z=function(){cat("Hello you!\n");tcl("after",1000,z)}
> tcl("after",1000,z)
 now every 1000ms it will say "Hello you!". I'm not sure how to
stop
this without quitting R. There's probably some tcl function that
clears it. Maybe. Or not. Just make sure you don't *always* reschedule
another event on every event.

 Barry