Whats wrong with the below equation , I get an error message when i keep this equation in a for loop to run multiple times.

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Sagar Saxena 2018-6-1

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关闭： MATLAB Answer Bot 2021-8-20

Expected one output from a curly brace or dot indexing expression, but there were 2 results.
Error in line :     I= obj.mhm.S(a)*(abs(obj.mhm.Phi(:,:,a)).^2);

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Answer 1

Walter Roberson 2018-6-1

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Either obj or obj.mhm (more likely) are non-scalar structs or objects. non-scalar structs or objects produce multiple outputs when they are indexed further.

Potential correction:

Sa = arrayfun(@(Sarray) Sarray(a), obj.mhm.S);
Phia = arrayfun(@(Phiarray) abs(Phiarray(:,:,a)).^2, obj.mhm.Phi, 'uniform', 0);
I = arrayfun(@(IDX) Phi{IDX} * Sa(IDX), 1:length(Phia), 'uniform', 0);

This would be a cell array of values. It needs to be a cell array because you have multiple obj.mhm and for each one of them you are extracting a 2D array from the Phi field. (Well, you could convert the result to a 3D array instead of a cell array.)