[R] R with command line

[Duke]

On 4/27/10 8:04 PM, Duncan Murdoch wrote:
> On 27/04/2010 6:15 PM, Duke wrote:
>> Hi all,
>>
>> I am testing R by trying R on command line (ie without opening R 
>> console) on a Mac Pro with 10.6. So I created a file plot.R:
>>
>> x11(width=5,height=3.5)
>> plot(1:10,1:10)
>>
>> So I have two questions below (please forgive me if the questions 
>> have been asked already)
>>
>> 1. What is the different between *R CMD BATCH infile.R* and *R 
>> --vanilla --slave < infile.R*?
>
> Those are quite similar.  A couple of differences are:
>
> --vanilla changes the startup options.  You'll use fewer of the 
> profile etc. files.  See ?Startup for the details.
>
>  R CMD BATCH sets up an output file to collect the output.  It would 
> likely be called infile.Rout.  It would also have a proc.time() call 
> added at the end.

Got it now. Thanks Duncan.

>
>> 2. When I ran plot.R with one of the above methods, the plot showed 
>> up for like a second and disappear. What should I do to keep the plot 
>> there until the user closes it?
>
> If you have a user involved, you should be running interactively, not 
> in batch mode. You can automatically run your infile.R ahead of 
> starting the session by setting an environment variable named 
> R_PROFILE_USER pointing to that file; e.g.
>
> R R_PROFILE_USER=infile.R
>
> (which sets the variable temporarily, only for that session).

Well, it seems to be beyond my understanding. Could you please elaborate 
a little bit more?

Thanks,

D.

>> Thanks,
>>
>> D.
>>
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>