Size mismatch when i am using simulink
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Greetings all, i am currently using simulink to do a project, however when i run the model the mismatch error has occured, below is the code an d details of the error:
Size mismatch (size [1 x 1] ~= size [2 x 10]). The size to the left is the size of the left-hand side of the assignment. Function 'MATLAB Function2' (#370.215.216), line 9, column 1: "u"
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/656075/image.jpeg)
can anyone help me to fix this problem? many thanks!!!
function u = fcn(x,y,K,P,u, Theta,Pstore)
for i=2:10
h=[x(i-1);1];
K=P*h*inv(h'*P*h+u);
Theta(:,i)=Theta(:,i-1)+K*(y(i)-h'*Theta(:,i-1));
P=(eye(2)-K*h')*P/u;
Pstore(:,i-1)=[P(1,1),P(2,2)];
end
u=Theta;
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Jonas
2021년 6월 17일
You have an input named 'u' and an output named 'u', with different sizes.
On line 9, the compiler thinks you are assigning the [2x10] matrix 'theta' to the [1x1] input 'u'.
Rename the output 'u'.
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