Basically you want to run something like

  R CMD BATCH infile outfile &

This may give you more output in outfile than you really want.  If you
want finer control over what is saved, experiment a bit with the
following to figure out how to get what you want.

To stop all the usual R command line stuff from being written to the
outfile, make

options(echo=FALSE)

the first line in infile.

Another thing that is useful is at the end of your file you can have a
line like

save(obj1, obj2, obj3, file = "sim1.Rdata")

This will save obj1, obj2, and obj3 (they might be some objects
containing simulation results) in the file sim1.Rdata.  If you do this
and run the simulation with a command like

R CMD BATCH --no-save infile outfile &

then nothing will be saved in the .Rdata file.  Actually, I usually
use something like

R CMD BATCH --no-save --no-restore infile outfile &

This runs the commands in infile (I would call it infile.R or
infile.Rbatch) with a "clean" R, i.e., it does not read the .Rdata
file in the current directory.  However, if you do it this way you
have to remember to source the functions that you need.

(C) University of Florida, Gainesville, FL 32611; (352) 392-1941. This page was last updated Last updated Tue Feb 15 10:41:35 EST 2005.