fixed error with mean and std

high_level_policy_main.py

@@ -129,6 +129,9 @@ def evaluate_high_level_policy(nb_episodes_for_test=100,
     print("Termination reason(s):")
     for reason, count_list in termination_reason_list.items():
         count_list = np.array(count_list)
+        while count_list.size != nb_trials:
+            count_list = np.append(count_list,0)
+
         print("{}: Avg: {}, Std: {}".format(reason, np.mean(count_list),
                                             np.std(count_list)))