Where is my mistake on ga command in SIMULINK?

Hi,

I am trying to use "ga" in SIMULINK, but i cannot perform it correctly.

Error message: Function handle cannot be used here.

How can i solve this problem?

Thanks,

function [uk, xk] = fcn(beta, w_z, yaw_angle, lat_pos,A_aug, B_aug, C_aug, yaw_angle_ref, Y_ref, uk_old, xk_old)
coder.extrinsic('ga');
...
    
J =  (transpose(Rs - (F * Xf + phi * delta_Uk))) * Q * (Rs -(F * Xf + phi * delta_Uk)) + (transpose(delta_Uk)) * R_bar * delta_Uk; 
nvars = 4;
lb = []; 
ub = []; 
Aeq = []; 
beq = []; 
P1 = [eye(p,p) zeros(p,p*(4 - 1))];
A = [T1; -T1;...
       T1; -T1;...
       ]; 
b = [delta_uk_max; -delta_uk_min;...
      uk_max - uk_old; -uk_min + uk_old;... 
     ];
delta_Uk = ga(@J,nvars,A,b,Aeq,beq,lb,ub);

Answer 1

[Walter Roberson]

J =  (transpose(Rs - (F * Xf + phi * delta_Uk))) * Q * (Rs -(F * Xf + phi * delta_Uk)) + (transpose(delta_Uk)) * R_bar * delta_Uk; 

That is not a function, it is a variable, probably a 2D array.

delta_Uk = ga(@J,nvars,A,b,Aeq,beq,lb,ub);

You are trying to take the handle to the 2D array J as if J were the name of a function.