"nonlincon" part of the "fmincon" function in the optimization toolbox

Hi guys, I want to create the "nonlincon' part of the "fmincon" function. I want to be able to call other variables in the nonlincon function like this:

function [c,ceq]=nonlincon(x,variable1,variable2,...,variableN)

but it gives this error:

Error in fmincon (line 681)
        [ctmp,ceqtmp] = feval(confcn{3},X,varargin{:});
Caused by:
    Failure in initial user-supplied nonlinear constraint function evaluation. FMINCON cannot
    continue.

Please help me out, thanks in advance.

Answer 1

[Elizabeth]

What if you globalize the variables that you want to define in the nonlcon function. You would write global variable1.. global variableN in both nonlcon and your main program.

Answer 2

[Alan Weiss]

You will probably be happier in the long run if you include your extra variables in a function handle or nested function rather than as global variables. See the documentation on passing extra parameters.

Alan Weiss

MATLAB mathematical toolbox documentation