R help - Nov 2015 - Read a file on every 0.5 (or less) second intervall

Hi,
i want to read a file on every 0.5 (or less) second.?How can i set this time
loop to read a file ?
Any idea will be appreciated .?Thanks .??Tanvir Ahamed 
   G?teborg, Sweden     |  mashranga at yahoo.com
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?Sys.sleep


Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.

On Fri, Nov 6, 2015 at 10:56 PM, Mohammad Tanvir Ahamed via R-help <
r-help at r-project.org> wrote:
> Hi,
> i want to read a file on every 0.5 (or less) second. How can i set this
> time loop to read a file ?
> Any idea will be appreciated . Thanks .  Tanvir Ahamed
>    G?teborg, Sweden     |  mashranga at yahoo.com
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
	[[alternative HTML version deleted]]

> On 07 Nov 2015, at 04:56 , Mohammad Tanvir Ahamed via R-help <r-help at
r-project.org> wrote:
> 
> Hi,
> i want to read a file on every 0.5 (or less) second. How can i set this
time loop to read a file ?
> Any idea will be appreciated . Thanks .  Tanvir Ahamed 
Sys.sleep() if exact timing is not too critical. Otherwise, using the tcltk
packages, you can interface to the "after" Tcl command. The generic
pattern is

boo <- function() {if (running) tcl("after", 500, boo) ;
cat("boo!\n")}
running <- TRUE; boo()

-pd


>   G?teborg, Sweden     |  mashranga at yahoo.com
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com