.Net Framework Wrapper

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Cyrus Harmon has used the same approach to interface R to Lisp
and I recently discussed this with him. He has gotten a long way.

I have developed a "lot" of inter-system interfaces and I
hadn't really considered going this route, i.e. interfacing
to the C routines in the R API or further still those
not necessarily "published" in the DLL.  I tend to work
at higher level with a very thin engine that
connects the two systems.  Instead of calling,
for example, Rf_parse() (or whatever) and the Rf_eval(),
I create a very general C routine that can call an arbitrary R function
and with arbitrary arguments. Then I can call the R function parse().
Then I can also call the R function eval(). And the nice thing about
this is that error handling is done correctly.
If you call Rf_parse() at the C-level, where will you return
to if there is an error.

I have waited to interface to .Net until there appeared to be a need
for it. But I had planned on using the approach for interfacing to
other systems, i.e. using the thin engine.
I will be interested to compare the relative merits of your approach.
You have access to every aspect of R and can build the interface
in either language. So in principal, you can do everything in
a variety of languages.

  D.

I am going to attempt to develop a wrapper for the R.dll library in the .Net
framework. 

 

I successfully interfaced with some very simple functions from the library,
but nothing close to do some data analysis.

 

I dumped all the "publicly" available functions and attributes from the
windows dll and found there are 2671 functions and attributes.

 

I created an API document that just has the function signatures and what
code file I found the function in; I have links to the file below:

 

http://valueadded.wceruw.org/LinkClick.aspx?link=R-API.pdf
<http://valueadded.wceruw.org/LinkClick.aspx?link=R-API.pdf&tabid=36&mid=377

&tabid=36&mid=377 PDF file

http://valueadded.wceruw.org/LinkClick.aspx?link=R-API.doc
<http://valueadded.wceruw.org/LinkClick.aspx?link=R-API.doc&tabid=36&mid=377

&tabid=36&mid=377 MS Word life

 

 

If this information is useful to anyone else please contact me. If there is
any interest to expand this document, I might setup some sort of help file
Wiki where people could add to the documentation.

 

If anyone would like to join my effort please contact me. Hopefully it
doesn't become too difficult and I will be able to make some headway.

 

 

Brian Vesperman

Associate Information Processing Consultant

Wisconsin Center for Education Research

RM 772

1025 W. Johnson St

Madison WI, 53706

608-265-5623

 


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Duncan Temple Lang                duncan at wald.ucdavis.edu
Department of Statistics          work:  (530) 752-4782
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