数据是这样的。
| panelist | Market_type | COUNT |
| 10001603 | HYPERMARKET | 1 |
| 10001603 | SUPER/CVS/MINI | 1 |
| 10008214 | HYPERMARKET | 1 |
| 10008214 | SUPER/CVS/MINI | 1 |
| 10008811 | HYPERMARKET | 1 |
| 10008811 | SUPER/CVS/MINI | 3 |
| 10088474 | HYPERMARKET | 2 |
| 10088474 | SUPER/CVS/MINI | 1 |
| 10088741 | HYPERMARKET | 2 |
| 10088741 | SUPER/CVS/MINI | 1 |
| 10088826 | HYPERMARKET | 1 |
| 10088826 | SUPER/CVS/MINI | 1 |
| 10088837 | HYPERMARKET | 1 |
| 10088837 | SUPER/CVS/MINI | 1 |
| 21002503 | HYPERMARKET | 1 |
| 21002503 | SUPER/CVS/MINI | 1 |
| 21005608 | HYPERMARKET | 1 |
| 21005608 | SUPER/CVS/MINI | 1 |
| 21009607 | HYPERMARKET | 1 |
| 21009607 | SUPER/CVS/MINI | 1 |
| 21011805 | HYPERMARKET | 3 |
| 21011805 | SUPER/CVS/MINI | 1 |
然后我要在这些数据里面,选择出每个不同的panelist里面count比较大的那个market_type,应该肿么办呢?如果count一样,就选择hypermarket.