########################################################### # # # Construct a BDD and a ROBDD for a given network # # system, and evaluate its reliability # # # ########################################################### from c_bdd import BDDSystem from c_robdd import ROBDDSystem from c_graph import BDDGraph, ROBDDGraph import numpy as np p = 0.5 matrix = np.array([[1, 1, 0, 0, 0], \ [1, 0, 1, 1, 0], \ [0, 1, 1, 0, 1], \ [0, 0, 0, 1, 1]]) tlist = [0,3] sys = BDDSystem(BDDGraph(matrix, tlist)) result = sys.calculateReliability0(p) sys.printSystem() print("") print("---------------") print("BDD-method:") print("---------------") print("System unreliability = ", result[0]) print("System reliability = ", result[1]) print("") print("------------------------") print("") sys = ROBDDSystem(ROBDDGraph(matrix, tlist)) result = sys.calculateReliability0(p) sys.printSystem() print("") print("---------------") print("ROBDD-method:") print("---------------") print("System unreliability = ", result[0]) print("System reliability = ", result[1])