Is it possible to call a program (an .exe wrote in C) from R Gui? I'm
interested in interact with inputs for this program and analyze outputs with
R.

The program itself calls a input.dat  file with a number of needed
parameters. Based on this input file it produces a number of files resuming
the parameterized analysis. I'm actually already able to read these outputs
with R, and produce a number of outputs (graphs and tables). Nevertheless,
each run of the program is manually done by now. It would be interesting to
loop the call of the program, manipulating parameters  at each run.

Do exist a way of interact with a external exe from R?

Thanks in advance.

Paulo


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