修改了评价指标，避免唯一解时，发生除0错误

2025-12-09 17:16:47 +08:00 · 2025-12-09 17:16:47 +08:00 · c8cf4857a0
parent abd1544d6b
commit c8cf4857a0
1 changed files with 8 additions and 2 deletions
--- a/data_structures.py
+++ b/data_structures.py
@ -116,6 +116,12 @@ class DataStructures:
        :return: 评价指标值
        """
        cost, tardiness = objectives
-        cost_ratio = cost/(max_cost - optimal_cost)
-        tardiness_ratio = tardiness/( max_tardiness - optimal_tardiness)
+        if max_cost - optimal_cost == 0:
+            cost_ratio = 0
+        else:
+            cost_ratio = cost/(max_cost - optimal_cost)
+        if max_tardiness - optimal_tardiness == 0:
+            tardiness_ratio = 0
+        else:
+            tardiness_ratio = tardiness/( max_tardiness - optimal_tardiness)
        return cost_ratio + tardiness_ratio