On 11/19/2008 10:13 AM, megh wrote:
In the optim() function there is a syntax :
res <- .Internal(optim(par, fn1, gr1, method, con, lower,
Here how can I see the inside-codes of ".Internal" function ?
You need the R source code. Then find src/main/names.c, and look up
"optim". It will tell you the C name of the function being called.
In this case, for the R-devel version, you'll find this on names.c line 853:
{"optim", do_optim, 0, 11, 7, {PP_FUNCALL, PREC_FN,
0}},
So you need to find the do_optim function. It's in src/main/optim.c.
You can browse these source files on
https://svn.r-project.org/R/trunk/src/main
Duncan Murdoch
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