[R] Java/C interface with R

[Li Dongfeng]

Prof Brian D Ripley wrote:
> 
> On Thu, 16 Sep 1999, Thomas Lumley wrote:
> 
> > On Thu, 16 Sep 1999, Lionel Siau wrote:
> >
> > > Hi,
> > >
> > > I'm rarther curious if it is possible to interface C or Java GUIs with
> > > the underlying R statistical engine. SPLUS has something like this in
> > > S+SDK.
> >
> > Up to a point.  The Gnome and Windows ports use R as a backend library and
> > feed commands to it from a GUI frontend. You could do something similar.
> 
> (The Windows version has a documented plug-in interface for its DLL. It is
> not quite as simple as Thomas paints it, as both the front and back ends
> need to run event loops.)
> 
> > Also, a .Java() interface may be available Real Soon Now to allow popping
> > up Java things from R functions.  I am currently doing something like this
> > only less elegant with sockets to control dynamic graphics in Java.
> 
> I think the future of this has to be inter-process communications,
> like CORBA or (shudder) (D)COM.  There is some example code for the latter
> on Windows, which should appear in the next release: we can let you
> see a version shortly if you really want to get on with it. (It works well,
> but it does not handle errors well yet).  And an R/CORBA interface
> is also under construction, I understand.

That's really exciting! I am creating (another) R web interface,
this time using an long-running R subprocess(the other existing
R web servers start one R process per request). But the subprocess
will end if the submited source has any error. An R/CORBA interface
with good error handling will be great for web integration.


> 
> --
> Brian D. Ripley,                  ripley at stats.ox.ac.uk
> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272860 (secr)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595
> 
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