How do I access a field from a function's input?

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Hello, I currently have a struct with different field names "Delta", "Theta", "Beta", and "Gamma". I'd like to be able to call upon these different fields in my function based on some input "freq" (sample code below). However, whenever I try to access the field from the variable it takes the variable as a literal value "freq" instead of the input in the function and thus I get an error that it can't find myStruct.freq. Is there a way I could go around this? Thanks!
function[output] = myFunction(freq)
output = myStruct.freq
end

Accepted Answer

James Tursa
James Tursa on 10 Jan 2022
Edited: James Tursa on 10 Jan 2022
Assuming you are passing in a character string for freq, use this syntax:
output = myStruct.(freq);
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