Function Reference
— Function File: [v1, ...] = getfield (s, key, ...)

Extract fields from a structure. For example

          ss(1,2).fd(3).b=5;
          getfield (ss, {1,2}, "fd", {3}, "b")
           ans = 5

Note that the function call in the previous example is equivalent to the expression

                   i1= {1,2}; i2= "fd"; i3= {3}; i4= "b";
                   ss(i1{:}).(i2)(i3{:}).(i4)