[R] Read a file on every 0.5 (or less) second intervall

[peter dalgaard]

> 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



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-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
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