| 模型变量 | lndifi | lnrenge | lndepth |
| tour (lndigi ≤ 3.8190) | 2.060*** (4.57) |
|
|
| tour (lndigi > 3.8190) | 2.936*** (8.95) |
|
|
| tour (lnrenge ≤ 4.1493) |
| 1.916*** (4.19) |
|
| tour (lnrenge > 4.1493) |
| 2.863*** (8.82) |
|
| tour (lndepth ≤ 4.2270) |
|
| 2.103*** (4.72) |
| tour (lndepth > 4.2270) |
|
| 2.932*** (8.89) |
| 是否加入控制变量 | 是 | 是 | 是 |
| constant | 10.673*** (85.71) | 10.707*** (86.28) | 10.668*** (85.07) |
| R2 | 0.7923 | 0.7999 | 0.7915 |