function net=Network()
           net.bus=[]; % e non net.bus
	end
ERRORE DATO:
An indexing expression on the left side of an assignment must have at least one subscript.

Se tolgo:
??? Undefined function or method 'addBus' for input arguments of type 'Bus'.

Error in ==> Main at 16
rete.addBus(a);
Sia che io metta rete.addBus(a) o solo addBus)a)