| 观测值 | 均值 | 标准差. | 1%分位数 | 中位数 | 99%分位数 |
Sc | 341 | 4.7174 | 1.3316 | 1.586 | 4.8819 | 6.9488 |
numb | 341 | 18.4282 | 18.2303 | −1 | 13 | 80 |
lnrg | 341 | 10.8619 | 0.4466 | 9.8889 | 10.8328 | 12.009 |
lngt | 341 | 16.7534 | 0.9547 | 14.0328 | 16.8576 | 18.6117 |
lnfd | 341 | 6.6569 | 1.5705 | 2.5865 | 6.6559 | 9.9838 |
urb | 341 | 0.5864 | 0.1307 | 0.2623 | 0.5745 | 0.893 |
qc | 341 | 0.4728 | 0.0866 | 0.2723 | 0.4893 | 0.6335 |