return 0 if profit2 == 0 else float(profit1 / profit2)
def toString(self):
i = 0;
s = ''
for cluster in self.clusters:
s += '\t' + str(i) + ' => ' + cluster.toString() + ',\n'
i += 1;
return '{\n%s}' % s
if __name__ == "__main__":
t1 = Transaction('a,b').getTransaction()
t2 = Transaction('a,b,c').getTransaction()
cluster1 = Cluster(t1)
cluster1.addTransaction(t2)
print 'cluster1:'
print cluster1.getCluster()
t3 = Transaction('e,f').getTransaction()
t4 = Transaction('e,g,f').getTransaction()
cluster2 = Cluster(t3)
cluster2.addTransaction(t4)
print 'cluster2:'
print cluster2.getCluster()
print "clusters:"
clope = Clope()
clusters = []
clusters.append(cluster1)
