Michael Creel wrote:
> Internally, __bfgsmin.c uses feval to compute the function value. Perhaps
> that could be changed to work with anonymous functions. I think that this
> would be the hardest part of making the change.
>
>
Here is a code snippet that is needed to accept a function as the first
argument in an oct-file as a function handle or inline functio. String
functions are accepted and converted internally into an anonymous
function handle. The code then calls the function on an internally
created list of arguments and gets the results in another
octave_value_list.. If a string was passed, the internally created
function handle is cleared when you leave the oct-file..
octave_function *opt_fcn;
std::string fcn_name;
.....
if (args(0).is_function_handle () || args(0).is_inline_function ())
opt_fcn = args(0).function_value ();
else
{
fcn_name = unique_symbol_name ("__opt_fcn_");
std::string fname = "function y = ";
fname.append (fcn_name);
fname.append ("(x) y = ");
opt_fcn = extract_function (args(0), "mle_estimate", fcn_name,
fname,
"; endfunction");
}
.....
octave_value_list in_args;
in_args(0) = x;
octave_value_list out_args = opt_fcn->do_multi_index_op (1, in_args);
....
if (fcn_name.length ())
clear_unction (fcn_name);
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