Re: [R] RPy

From: Barry Rowlingson <b.rowlingson_at_lancaster.ac.uk>
Date: Mon, 21 Apr 2008 09:46:06 +0100

Doran, Harold wrote:
> I'm curious if there are users of RPy on this list. I've recently
> created a gui front end using Tkinter for some python scripts I've
> written for some of our internal operations and I am quite pleased with
> how this program works.

> Currently, I can use py2exe to create a executable that allows for this
> gui to appear and for all python scripts to run even if the user doesn't
> have python on their machine. So (maybe) in theory if I can link Rpy to
> my gui to run R, I can then use py2exe to compile it and that would
> allow the user to run the functions even if R isn't on the machine.

  You're confounding having something on a machine with having something installed on a machine. Py2exe works by bundling all of python with the exe file, so in a sense the target machine does have python on it, just not installed in C:\Python in the usual way. If you give someone four different py2exe programs, they end up having four lots of python.

  For Py2exe to work with R so that people wouldn't have to install R, it would mean that Py2exe would have to bundle up all of R in the exe file. So that's the R binary, the .dll, every library package needed and so on. In a word, 'ick!'.

> I realize this is a broad question and has no minimal commented code.
> But, if anyone has some experience using Rpy, Tkinter and R I can come
> up with a small example to see if we could work out a possible way to
> use Tkinter to run R
  Rpy is the way to go, but you will have to get your users to install R, python and Rpy. It's only a few clicks and they only have to do it once.

  Personally I've used PyQt to create python programs with Qt GUIs that call R and it all works very nicely.

Barry



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