Genetic algorithm - changing only few arguments - errors

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I have to run the genetic algorithm by changing only C1,C2,C7 input arguments of the following function DL_Main_DPDPSCM
The remaining arguments are loaded through the file
data = load ('dpdpscm_data.mat');
function [ rho ] = DL_Main_DPDPSCM(x,C1,C2,C3,C4,C5,C6,C7,capae,capai,capaf,rti,rtp )
C1 = x(1);
C2 = x(2);
C7 = x(3);
I have written the fitness function as
fit = @(x) DL_Main_DPDPSCM(x);
[y,fval] = ga(fit,3);
It is showing errors in the user supplied fitness function.
where did i made the mistake and how to correct it
  1 Comment
John D'Errico
John D'Errico on 28 Jan 2018
Please don't use the answers as a thread, so adding an answer for every comment made. I've moved your answer into a comment for you.

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Accepted Answer

Walter Roberson
Walter Roberson on 28 Jan 2018
  5 Comments
Walter Roberson
Walter Roberson on 29 Jan 2018
Edited: Walter Roberson on 29 Jan 2018
Hold on.... Your C1 C2 C7 are all 3d arrays but in your objective function you replace all of those arrays with the scalar value x(1) or x(2) or x(3). You know the x values are individually scalar? If you want to tune the entire array C2 at one time you need to tell ga that the number of variables is at least as high as the number of elements needed to fill the matrix

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