How to fetch output when calling R using Qprocess or system
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Published on 2010-03-12T15:26:33Z
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2010/03/12
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Hi Experts,
I would like to execute a R script simply as
R --file=x.R
It runs well on the command line. However when I try the system call in C++ by
QProcess::execute("R --file=x.R");
or
system("R --file=x.R");
the program R runs and quits but I can't see the output the program is supposed to generate. If a program uses no stdout (such as R), how do I fetch the output after a system call either as a output file or in the program's own console?
Thanks for your time.
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