when use yalmip: Unable to perform assignment because dot indexing is not supported for variables of this type.

Question

Tong Liu 2019-7-12

0
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https://ww2.mathworks.cn/matlabcentral/answers/471457-when-use-yalmip-unable-to-perform-assignment-because-dot-indexing-is-not-supported-for-variables-of

回答： Chidvi Modala 2019-7-18

I use yalmip for programming problem. the code is as follows:

f=sdpvar(3,3);
delta=[1 1 0 
       0 0 1 
       0 1 0
       1 0 0
       0 1 1];
for a=1:5 
    for i=1:3 
        x(a,i)=delta(a,:)*f(:,i); 
    end
end
t_0=[7,5
     9.5,6
     1,1
     9,6
     4,3]; 
gamma=[2, 1];
C=[400, 300, 450, 450, 100]; 
for a=1:5
    for i=1:2 
        t(a,i)=t_0(a,i)*(1+0.15*((gamma(i)*x(a,i)/C(a))^4)); %error line
    end
end

but the error is 'Unable to perform assignment because dot indexing is not supported for variables of this type'. Could you please help me find out the bug?