How can I change the 'MaxIterations' option in matlab 'createOpt​imProblem(​'fmincon',​..........​)'

I am trying to solve a problem using the follwing code:

rng default 
gs = GlobalSearch;
problem = createOptimProblem('fmincon','x0',x0,...
    'objective',objective,'lb',lb,'ub',ub,'nonlcon',constfunc);
[res] = run(gs,problem);

But when I run this, this massage i get in command window:

'''''''''GlobalSearch stopped with one or more of the local solver runs stopping prematurely.

9 out of 9 local solver runs exceeded the iteration limit (problem.options.MaxIterations) or

the function evaluation limit (problem.options.MaxFunctionEvaluations).

None of the 9 local solver runs converged with a positive local solver exit flag"""""

I like to change the default option ""MaxIterations"". And ''MaxFunctionEvaluations''. I tried using the follwoing way but its not working,

rng default 
gs = GlobalSearch;
problem = createOptimProblem('fmincon','x0',x0,...
    'objective',objective,'lb',lb,'ub',ub,'nonlcon',constfunc,'MaxFunctionEvaluations',3000);
[res] = run(gs,problem);

It gives the following error:

"""""No field MaxFunctionEvaluations exists for PROBLEM structure."""""

How can I solve this problem? Thank you for your comment in advance.

Answer 1

[Matt J]

You need to do this,

opts=optimoptions('fmincon', 'MaxFunctionEvaluations',3000);

problem = createOptimProblem('fmincon','x0',x0,...
    'objective',objective,'lb',lb,'ub',ub,'nonlcon',constfunc,'options',opts);

[Md. Hasan Rahman]

Thank you. It worked.

[Matt J]

You're welcome, but since it did work, please Accept-click the answer.