When a structure is passed to a function, can we add a field to it?

As the title suggests:

If I passed a structure variable to a function, can this function add a new field to it and have that stucture among its outputs with the new added field?

Or, do I have to create a new output structure?

Answer 1

[Voss]

The answer is yes, the function can add a new field and pass the struct back out, and no, you don't have to create a new struct (MATLAB creates a new struct for you).

input = struct('old_field',1);
output = test_function(input);
disp(input);

    old_field: 1

disp(output);

    old_field: 1
    new_field: 2

function in = test_function(in)
    in.new_field = 2;
end

[Mohamed Abd El Raheem]

Thanks a lot !