![]() ![]() The optimization problem is something in the form: minimize (y - m x - q)² I'll give you a simple example:Ĭonsider this Simulink "model", in which at each integration step I want to solve a linear regression problem on some generated data. m file function for Matlab (namely opt_problem) and declare coder.extrinsic('opt_problem') in the simulink Matlab function. Instead of using coder.extrinsic on the fmincon function, I usually write a wrapper for the optimization problem that I have to solve as a. how to call fmincon from a Matlab function within Simulink) on the Mathworks blog, but with no answer ( ).Ĭould anyone give me a hand? Thanks in advance! Looking for a solution to the problem, I found the same question (i.e. I tried to change my cost function calling Simulink to another, simpler cost function ( x.^2), but I still get the error. However, if you do this, then you get the following error: Function handles cannot be passed to extrinsic functions. This was required because otherwise Simulink is unable to compile the mex file. mex file, I do not need to program in C yet), I added the command ![]() ![]() * Firstly, in order to compile the code without errors (basically obtaining a. I tried this approach, but there are two very clear problems: Please, ignore any issues related to computational efficiency so far. Simulink -> Matlab ( fmincon or quadprog) -> Simulink.Īs you can see, the Matlab S-function would call either fmincon or quadprog, but I would like to use fmincon for my particular control type. Hence, the program flow would be as follows: To do so, my plan was to have the dynamic model in Simulink call an external Matlab S-function which in turns runs an optimization that calls a different Simulink file. I am trying to implement a particular type of model predictive control in the Simulink-Matlab framework. ![]()
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