While trying to optimize a controller parameter, I get the following message, Does anybody know how to solve this problem?


Usually, try a different initial point.

sorry, I do not understand your answer. please more details.

Many solvers a local solver, i.e. search for a minimum in the neighbourhood of the point where you started. If you look at the documentation of fmincon, it’s the x0 in
x = fmincon(fun,x0,A,b)

Thank you fro you answer,
i am working through simulink design optimization toolbox using check custom bounds, you can see the picture below. how i set the parameter.

but it give me the same erorr.

You realize this is an economics forum and the problem you have may be subject-specific?

in the problem, I want to optimize alpha1, specify the upper and lower bound as mentions in the picture, but when I run the optimization it gives the error as below.131917691_1947276298745791_6390991958907881849_n