A Modified Priority-Based Encoding for Design of a Closed-Loop Supply Chain Network Using a Discrete League Championship Algorithm

Table 9

The results of the Duncan test among each solution method.

Problem instance #	PB1 v.s. PB2	PB1 v.s. PB3	PB2 v.s. PB3
1	NO	NO	NO
2	NO	NO	NO
3	NO	NO	NO
4	NO	NO	NO
5	NO	YES	YES
6	NO	YES	YES
7	NO	YES	NO
8	NO	NO	YES
9	NO	NO	NO
10	NO	YES	YES
11	NO	YES	YES
12	NO	YES	YES
13	NO	YES	YES
14	NO	YES	YES
15	NO	YES	YES
16	NO	YES	YES
17	YES	YES	YES
18	YES	YES	YES
19	YES	YES	YES
20	YES	YES	YES
21	YES	YES	YES