有一个数据表,如下,12个变量10行观测,取每一行观测的最小值并将该最小值对应的变量名赋值给flag_tj,,例如第一行,flag_tj的值应为arpu_0027_d,请问大神如何实现?
arpu_0048_d | arpu_0011_d | arpu_0027_d | arpu_0028_d | arpu_0075_d | arpu_0076_d | arpu_0078_d | arpu_0079_d | arpu_0083_d | arpu_0080_d | arpu_0081_d | arpu_0082_d | flag_tj |
14.33 | 8.845 | 6.845 | 12.39 | 43.733 | 62.39 | 112.39 | 132.39 | 162.39 | 212.39 | 312.39 | 562.39 | |
53.3809 | 22.9409 | -31.2591 | -60.15 | -16.578 | -15.078 | 1.33 | 21.33 | 51.33 | 101.33 | 201.33 | 451.33 | |
-5.206 | -9.731 | -11.731 | -3.306 | 24.389 | 46.694 | 96.694 | 116.694 | 146.694 | 196.694 | 296.694 | 546.694 | |
-10.014 | -10.404 | -1.574 | 8.426 | 28.426 | 58.426 | 108.426 | 128.426 | 158.426 | 208.426 | 308.426 | 558.426 | |
11.646 | -9.854 | -11.854 | -7.854 | 37.846 | 39.346 | 45.646 | 65.646 | 95.646 | 145.646 | 245.646 | 495.646 | |
6.428 | 5.528 | 12.828 | 22.828 | 42.828 | 72.828 | 122.828 | 142.828 | 172.828 | 222.828 | 322.828 | 572.828 | |
0.65 | -0.365 | 6.59 | 16.59 | 36.59 | 66.59 | 116.59 | 136.59 | 166.59 | 216.59 | 316.59 | 566.59 | |
3.906 | -6.934 | -8.934 | -4.934 | 32.238 | 33.738 | 80.546 | 100.546 | 130.546 | 180.546 | 280.546 | 530.546 | |
7.22 | -9.285 | -11.285 | -7.285 | 34.419 | 35.919 | 61.2 | 81.2 | 111.2 | 161.2 | 261.2 | 511.2 | |
-7.53 | -12.57 | -14.57 | -7.69 | 21.962 | 42.31 | 92.31 | 112.31 | 142.31 | 192.31 | 292.31 | 542.31 |