This is a major step in the right direction. I know that Duncan has at least
the beginning of an R bridge to the Cocoa toolkits, which would be the
Does he? I was toying with a Cocoa package for R (Cocoa windows/widgets in R; quite interesting how to tell R package installation system to handle Obj-C sources ...). I thought about using parts of Rserve to put together something like JRclient but for Obj-C, plus a class that would encapsulate R services like the parser and the evaluator. Duncan could probably use his OH stuff for that - it might work. I'd be interested to lear more about his progress.
second major step. It will make it possible to write stand-alone R based
applications with a Cocoa GUI, of which R.app will just be a major example,
but of which Rglm.app or Rcluster.app could be other examples (with
problem specific menus and graphics). And these could all be developed
nicely by having a Xcode plugin for R.
Definitely - I was thinking along these lines - with proper Obj-C classes encapsulating R functionality now exposed by R.framework an application could be "written" (though it's not the proper word any more ;)) with the Cocoa controller layer just by using drag&drop. That would be awesome...
These steps emphasize the strengths
of OS X (as the quartz device already does) and do not just give another
boring shell around the command line interpreter. Getting away from Carbon
in this way is important, and you don't have to learn Objective C to
program in Cocoa.
I guess that Quartz in Carbon is ok for now, because it actually doesn't use almost anything from Carbon except for the window creation routines ;). Everything else (especially widgets & co) could be Cocoa.
Simon
--- Simon Urbanek Department of computer oriented statistics and data analysis Universitätsstr. 14 86135 Augsburg Germany
Tel: +49-821-598-2236 Fax: +49-821-598-2280
[EMAIL PROTECTED] http://simon.urbanek.info
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