MATLAB: Treating input arguments (not paying attention to order of number)

Question

There is a "master class" that instanciates different objects depending on the users choice. A stuct array with a set of parameter should be the indicator if an object is created or not. For every init-function there is one input struct.

First attempt was..

% Constructor
function obj = MasterClass(object1_struct,object2_struct,object3_struct,object4_struct)
            if exist('object1_struct','var')
                obj.initObj1(object1_struct);
            end    
            if exist('object2_struct','var')
                obj.initObj2(object2_struct);
            end
            if exist('object3_struct','var')
                obj.initObj3(object3_struct);
            end       
            if exist('object4_struct','var')
                obj.initObj4(object4_struct);
            end
end

but of cause, if I call e.g.

obj = MasterClass(object3_struct,object2_struct)

Object1 and Object2 are created with inputs object3_struct and object2_struct. So what's the way to do it, without insert empty structs or pay attention to the order?

Answer 1

Use name/value pairs, unless there is something inside of the structs that identifies which kind of object it is for, or some other way of deducing from the struct what its purpose is.