The "Current Function Value" plot ?

Hello, How can i get "current function value" giving by Optimization tool using only the command line?

Thanks !

Answer 1

[Walter Roberson]

Construct an options structure that includes PlotFcn and give an option value of @optimplotfval . The options structure can be constructed using the new optimoptions or the older optimset .

The options structure must be passed as the 10th parameter to fmincon(), so if you do not need some of the parameters, pass [] in their place.

[amine&&]

Hello Roberson, based on your instructions i established this snippet of code that works perfectly :

>> options = optimset('PlotFcns',@optimplotfval);
>> [y,fval] = fmincon(f,x0,[],[],[],[],[0,0],[1,1],[],options);

what do you think?

[Walter Roberson]

That looks okay.

[amine&&]

Thanks for your efforts Roberson.