cluster_id chan_grp
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 1
8 0
9 4
10 0
11 3
13 0
14 5
15 5
16 4
19 7
20 6
21 7
23 7
24 4
25 0
26 0
27 0
28 3
29 3
33 6
34 6
35 6
36 6
39 7