MATLAB: How to use structures as properties of a matlab class

code generationMATLABobject oriented programmingoop

Dear reader,
I would like to be able to use structures inside classdef and I do now know how to do it. Here is a toy example of what I would like:
classdef dummy1
         properties         
             S.a = 0;
             S.b = linspace(1,2,1e1);
             S.c = [1 2 3];
             P.d = 0;
             P.e = 1;               
         end 
         methods
             %constructor
             function obj = dummy1()
                 obj;
             end 
         end 
   end
Notice the two structures S and P defined inside this class.
However I get an error when running:
dummy1()
Any help is highly appreciated. Once I get through with this, the next challenge would be to have this class ready for code generation.
Thank you

Best Answer

The declaration and initialisation of a property in a class must follow the form:
variablename = value;
You can assign a structure as that value, but that structure needs to be fully formed, for example with struct (or cell2struct, or a function that return a struct, etc.):
classdef dummy1
    properties
        S = struct('a', 0, 'b', linspace(1, 2, 10), 'c', [1 2 3]);
        P = struct('d', 0, 'e', 1);
    end
end
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