***compare i_func_file#
Description#
This comparison is similar to i_file_file except that a function will be evaluated for all the \(x\) values of the reference file, and the values will be compared directly.
The function to be optimized is given by:
(508)#\[{\cal F}_i = \frac{1}{{2 N}} \sum_{i=1}^N
( {funame}({t_{1,i}} \dots {t_{n,i}}) -{y}_i)^{2}\]
Syntax#
The following syntax is used here:
i_func_file funame \(t_{i,1}\) … \(t_{i,n}\) y flname
\(~\,~\,~\,~\,\) [weight vweight]
funame is the name of a function defined under ***function, flname is the name of a “column” file. \(t_{i,1}\) … \(t_{i,n}\) are the columns id’s representing the \(n\) arguments of flname (other than optimization variables that also can be arguments of the function). y is the column of flname representing the function values associated with the \(n\)–uplets \(({t_{i,1}} \dots {t_{i,n}})\).