MATLAB: Calling a Field of a Struct by a Pre-defined String Variable

calling a field of a struct by a pre-defined string variable

I want to call a field of a struct by a string variable named like that field, but I receive the error “Reference to non-existent field …”. How can I solve this problem? I mean how can I define a name of a field with a string variable and then add this string variable to struct to call the field?

A.B = 'B1'; % Assign the value B1 to field B
C = 'B' % Assign the value B to variable C
A.C % I receive the error “Reference to non-existent field 'C'.”

Best Answer

generate field names from variables

 A.(C)

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You need to pass in the filename as a string.

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Make sure to assign the revised struct back to the original variable. For instance, to remove field "field" from "s", use:

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For more information, see the below documentation reference:

https://www.mathworks.com/help/matlab/ref/rmfield.html

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