implementing fmincon() when the variables are matrix

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Susan
Susan 2019-4-29
编辑： Susan 2019-4-29
Hey guys,
I want to implement fmincon() for this problem: I am minimizing an objective function with respect to some variables. the variable has the following format
X = cell(max(I(:)), numel(I), numel(I), numel(M), max(M(:)))) and inside each cell I have a Nt*Nr matrix. The goal is to find the optimal values of each matrix.
I defined the symbolic array of X (I am not sure if I am doing it correctly, though) and pass it to my objective function to calculate the objective function as follows:
X = cell2sym(cell(max(I(:)), numel(I), numel(I), numel(M), max(M(:))));
objfun = f(X)
but, I get the following error: Brace indexing is not supported for variables of this type.
while I am able to get the value of f(X0) without any issue. Could anyone please kindly explain what the problem is?
Thanks in advance

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