我有一个这样的表,我想在 25 个用户中选择 12 个组,但用户不能在任一列中出现多次。这是为了我的研究工作。
userx usery final
user1 user9 0
user2 user21 0
user3 user20 1.86603810646243E-02
user4 user14 0
user5 user13 0
user6 user12 0
user7 user11 0
user8 user10 0
user9 user23 5.2301255230118E-03
user10 user12 5.13300861745978E-02
user11 user15 1.6096147655314E-03
user12 user19 2.1337126600292E-03
user12 user22 2.1337126600292E-03
user13 user18 3.3259423503309E-03
user14 user21 7.657805491741E-04
user15 user16 5.4939136055145E-03
user16 user21 5.3359468583246E-03
user17 user18 1.49153302680261E-02
user18 user21 0.004619445666522
user19 user22 0
user20 user24 2.6088701585401E-03
user21 user23 2.01673460630756E-02
user22 user23 0.05878423513694
user23 user24 2.21079691516702E-02
user24 user25 4.57905347028916E-02