Conversion to double from optim.prob​lemdef.Opt​imizationE​xpression is not possible

Hello

I have an optimization problem and I have a constraint function in it, but I get error ' Conversion to double from optim.problemdef.OptimizationExpression is not possible' in below code in line 16:

function constraints = constraintFcn_2(v)

global Q

t=0.1;

x1=[6 3 0]';

x2=[3 5 0]';

x3=[1 4 0]';

x4=[1 2 0]';

x5=[3 1 0]';

M=[x1';x2';x3';x4';x5'];

coeff1= pca(M);

direc1=coeff1(:,1);

K=[];

W = Q;

TT=W+v;

for i=1:length(TT)/3

K(i,1)=TT(3*i-2); %%%%%%%Error occurs in this line

K(i,2)=TT(3*i-1);

K(i,3)=TT(3*i);

end

coeffpca=pca(p_mds_pca);

direction=coeffpca(:,1);

%%%%%%%%%%%%%%%%%%55

constraints=norm(direction-direc1)<=t;

end

How can I fix it?

thank you.

Answer 1

[Walter Roberson]

https://www.mathworks.com/help/optim/ug/fcn2optimexpr.html#mw_7959222a-434e-46eb-aec3-fe7942326891

I am not sure if you will need remove the inequality from the function; the example shows the comparison after the call