% output = mergeOptions(default, user, name)
% Merge a default options struct with a user-defined options struct. Works
% recursively, and will issue warning messages if the user attempts to
% define a field that is not in the default options.
% - All fields in DEFAULT will be present in OUTPUT
% - If a field is in both DEFAULT and USER, then the value from USER is
% present in OUTPUT
% - If a field is present in USER, but not DEFAULT, then issue a warning.
% - Applies recursively
% The argument NAME is optional, and contains a string specifying the
% name of the options struct. This is primarily used for printing
% warnings to the user.
% This function works recursively. For example, if there is a struct
% inside of a struct, then it will recursively apply this merge.
Matthew Kelly (2023). Merge Options (https://www.mathworks.com/matlabcentral/fileexchange/54837-merge-options), MATLAB Central File Exchange. Retrieved .
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