[R] does R read commands from scripts instantanously or seuqently during processing

[Rolf Turner]

On 03/15/2013 05:13 AM, Jannis wrote:
> Dear R community,
>
>
> when I source a script into R via:
>
>
> R --slave < scriptname.R
>
>
> is the whole script file read at once during startup or is each 
> indivdual line of code read seqnetially during the execution (i.e. 
> directly before r processes the respective command)? In other words, 
> can I savely edit the  scriptname.R file even when an active R process 
> still runs the command above?


Experiment.  Build a toy script with a loop that never terminates. Set
it going.  Edit the script and change the code so that the loop terminates.
See what happens.

[It seems to me that nothing happens, so that you *can* "safely" edit 
the script while
the process runs.  But further experimentation would be advisable.]

     cheers,

         Rolf Turner