[R] Pipe

[jim holtman]

readLines will read until it reached an end-of -file.  try

readLines(con, n=1)

to read one line at a time an then process it.

On Tue, May 25, 2010 at 2:07 PM, Joe Stuart <joe.stuart at gmail.com> wrote:
> Hi,
> I'm trying to use the pipe function to read data from another process
> on my server.
>
> Here is the code I have tried.
>
> con <- pipe("/var/matlab/scripts/stream.pl")
> while(con_read <- readLines(con)) {
>  print(con_read)
> }
>
> Problem is that the data from the perl script just keeps appending to
> con_read and it never gets to the print function. Which makes sense,
> but I would like to be able to perform calculations on con_read, while
> the script continues to read from the perl script.
>
>
> Any help is appreciated.
>
> -Joe
>
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>



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

What is the problem that you are trying to solve?