Calling Other (non-C or Fortran) Programs from R

Hi!

I wonder if anyone has experiences of calling other programs 
from R (i.e., not C or Fortran programs).

Specifically I want to call LEM from R and execute it in a 
loop to process its output in R.  Thanks,

I don't know what LEM is.  If it's a language that can produce DLLs or
.so's, then it should be straightforward to call them.  If it's a
program using standard input and output, the system() function is what
you want.

Duncan Murdoch