Invalid solver specified. Provide a solver name or handle (such as 'fmincon' or @fminunc). Type DOC OPTIMOPTIONS for a list of solvers. Error in Part2 (line 12) options = opt

clear
close all
Maximum_Gen = 30;
Population_Size = 60;
actual = 0.6;
options = optimoptions(['ga','PopulationSize', Population_Size ...
    'MaxGenerations',Maximum_Gen, ...
    'CrossoverFraction', actual ,'PlotFcn','gaplotbestf']);
%v for 1st Airfoil
v=[0.54,0.19,0.18,0.35,0.45,0.1,0.10,0.55,0.70,0.35,0.07];
%v for 2nd Airfoil
%v=[0.5,0.23,0.18,0.44,0.45,0.15,0.10,0.55,0.8,0.35,0.07];

%v for third Airfoil
%v=[0.27,0.30,0.18,0.29,0.08,0.01,0.10,0.65,0.78,0.45,0.07];
lob = max(0, v - 0.1);
upb = max(1, v + 0.1);

global jj
jj = 0;
[parameter, fval] = ga(@(b) OptGA(b),11, [],[],[],[],lob,upb,@Constr, options);
disp(['Minimizer value:' num2str(param)])
disp(['Final CL value:' num2str(1/fval)])
t= linspace(0,1,200);   
curve1 = airfoil_pmodel(v);
curve2= airfoil_pmodel(param);
cop1 = fnval(curve1,t);
cop2 = fnval(curve2,t);
copf1= cop1(1,:);
copg1= cop1(2,:);
copf2= cop2(1,:);
copg2= cop2(2,:);
f1= copf1';
g1= copg1';
f2= copf2';
g2= copg2';
[k1, A1] = boundary(f1,g1);
[k2, A2] = boundary(f2,g2);
fprintf("A1 = %f \n A2 = %f \n |A1-A2| = %f", A1, A2, abs(A1-A2));
func [OF] = OptGA(b)
global jj
jj= jj + 1;
%jj
%a
curve = airfoil_pmodel(b);
t = linspace(0, 1, 200);
Emx = fnval(crv, t);
Emx = Emx';
x = fopen('C:\Users\User\Documents\project\Emx300.dat','w');
for loop_ii = 1:length(Emx)
    for loop_jj = 1:2
        fprintf(x, "%10.12f ",Emx(loop_ii,loop_jj));
    end
    fprintf(x,"\n");
end
fclose(x);
system("C:\Users\User\Documents\project\xfoil.exe< xfoil_mycommand.txt");
CL = importdata("C:\Users\User\Documents\project\datum.dat");
CL = CL(end,2);
if CL==0 || CL<-4 || CL>4
    OF = 1000;
else
    OF = 1/CL;
end

Answer 1

[Torsten]

Remove the square brackets when specifying optimoptions.

[Chukwuemeka Edward]

Did WHAT YOU SAID, IT DIDN'T WORK. I removed the global and created a new file for it, showed less error but when i ran it, this came up;

Error using vertcat

Dimensions of arrays being concatenated are not consistent.

Error in Part2 (line 12)

options = optimoptions(['ga','PopulationSize', Population_Size ...

[Torsten]

But you still have the square brackets in the call to optimoptions. Why didn't you remove them ?

[Chukwuemeka Edward]

I removed them like i said before and it didn't run. here is the error: File: Part2.m Line: 13 Column: 1

Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To

construct matrices, use brackets instead of parentheses.

Line 13 is where i have my optimoptions and thats the only error i see.

[Torsten]

options = optimoptions('ga','PopulationSize', Population_Size, ...
                       'MaxGenerations',Maximum_Gen, ...
                       'CrossoverFraction', actual ,'PlotFcn','gaplotbestf');

[Chukwuemeka Edward]

Error using vertcat

Dimensions of arrays being concatenated are not consistent.

Error in Part2 (line 12)

options = optimoptions(['ga','PopulationSize', Population_Size ...

[Torsten]

Don't you notice from the error message that MATLAB uses a file where the square brackets are still there ?

Additionally, a comma is missing after the variable "Population_Size" (see below).

Error using vertcat
Dimensions of arrays being concatenated are not consistent.
Error in Part2 (line 12)
options = optimoptions([<------------'ga','PopulationSize', Population_Size <-----...
                 here and at the end of the command are                here is a comma
                       square brackets                                     missing
                    They have to be removed  

[Chukwuemeka Edward]

Thanks.

now i hav a new error on another line. pls help.

NonconFcn,options,Iterate,type] = gacommon(nvars,fun,Aineq,bineq,Aeq,beq,lb,ub, ...

Error in Part2 (line 41)

[parameter, fval] = ga(@(b) OptGA(b),11, [],[],[],[],lob,upb,@Constraints, options);

[Torsten]

I can't tell without your code.

But maybe

options = optimoptions('ga','PopulationSize', Population_Size, ...
                       'MaxGenerations',Maximum_Gen, ...
                       'CrossoverFraction', actual ,'PlotFcn',@gaplotbestf);

instead of your call

options = optimoptions('ga','PopulationSize', Population_Size, ...
                       'MaxGenerations',Maximum_Gen, ...
                       'CrossoverFraction', actual ,'PlotFcn','gaplotbestf');

Note the difference in specifying the plot function "gaplotbestf".

By the way: How did you set up this plot function ("gaplotbestf") ?