[R] how to get code of a .Internal() function?

[Roger Bivand]

On Wed, 20 Apr 2005, Alban wrote:

> Hello,
> 
> I'm working with the function optim() from stats
> package,
> and inside this function is called the function
> .Internal(optim(....)) and I want to get the code of
> this function which would help me to understand why
> the Nelder-Mead algorithm doesn't converge with my
> data.

If you don't want to download the source tarball, consider reading the 
codebase online, for example:

https://svn.r-project.org/R/trunk/src/main/optim.c

for the C code for optim, and look for nmmin.

> I'm working under Windows XP.
> Could you reply to this adress because I don't belong
> to the mailing list
> Thank you very much!!!
> 
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-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no