Simulink function block array element operation with a fixed size
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How can I achieve a array element opertion within the function block? The output of the function is sent to a integrator. Therefore, the output has a defined size.
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Ameer Hamza
2020-11-2
Change the code inside MATLAB function block to this
dy_dt = zeros(5,1);
dy_dt(1:3,:) = vars.g*u.*0.1.*y(1:3,:);
dy_dt(4:5,:) = vars.lambda*u.*0.1.*y(4:5,:);
Note that the first line is necessary for telling the compiler about the size of output dy_dt. Also, you cannot use zeros(var.size,1) since the compiler still cannot decide the value at compile time.
4 个评论
Jiwei Yao
2020-11-2
Ameer Hamza
2020-11-2
See the attached files. Note that, inside the MATLAB function block, I have defined a non-tunable parameter with the name of mySize (variable with this name also need to be defined in base workspace). You can check its properties by clicking the "Edit Data" button on the toolbar. This button will only appear when you open the MATLAB function block.
Jiwei Yao
2020-11-2
Ameer Hamza
2020-11-2
I am glad to be of help!
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