Hey Bob, If you're interested, I'd be glad to see what I can do to make doing UDP comms from R accessible across platforms without the need for a `system()` call. Mind shooting me a private e-mail to see what your needs are so I can try to generalize a solution from them?
-Bob On Sat, Apr 9, 2016 at 12:11 PM, Robert D. Bowers <n4...@tampabay.rr.com> wrote: > I'd spent hours with Google trying to find how to control a separate > software package from R via a UDP interface (I could run the package under a > "system" command, but that was too slow). I finally figured out a way to > communicate with UDP through R, and it works fine (using the "system" > command) - it's also fast. > > (1) install software "socat" (available on most of the Linux repositories). > It's potent software for communication stuff, btw. > > (2) set up the UDP 'port' to communicate with (like in a separate software > package for passing commands and responses back and forth). > > (3) use the "system" command to send messages - as an example: > system("echo \"quit\"| socat - UDP4-DATAGRAM:0.0.0.0:19004") > > I haven't tried receiving data from that software yet... but according to > the writeup on socat, it should be no problem. > You can also use the socat software to redirect from one type of connection > to another. > > (I'm studying R - both for programming/running 'real world' interfaces and > then doing the statistics on the data.) > > Hope this helps someone - the (tiny) few messages I've found indicated that > it couldn't be done (they were old). It can be done and rather simply. > > Bob > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.