in reply to Perl & R ?

This is untested since I don't have R, but something like this ought to work: 
open my $proc, "| R" or die "cannot open process R: $!";
autoflush $proc;
print $proc "source(\"commands.R\")\n";
close $proc;

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This forks off a subprocess running R and then writes the command to its standard input through a pipe. This assumes that R is able to accept input through a pipe (ie it doesn't presume a terminal), but it will probably work. See perlopentut for more.

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Re^2: Perl & R ?
by Jaya (Acolyte) on Mar 29, 2005 at 06:14 UTC
    I am working on linux machine and i cannot install the R/Splus-Perl Interface because I need root access for it!!i tried the fork code you gave me. I am getting this error 

    Fatal error: you must specify `--save', `--no-save' or `--vanilla'
Fatal error: you must specify `--save', `--no-save' or `--vanilla'
Fatal error: you must specify `--save', `--no-save' or `--vanilla'
Broken pipe

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    is this error because of the special shell character > , if so how to solve it

    Thank You

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[d/l]
      Just curiously, have you tried: 
      system("R commands.r")

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[d/l]
        Yes. I did. That was the first thing i tried.
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