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Multicollinearity diagnosis of driving factors.
| Driving factors | Tolerance | Variance inflation factor |
|---|---|---|
| The distance to residential area | 0.563 | 1.777 |
| The distance to mines | 0.351 | 2.846 |
| The distance to roads | 0.228 | 4.387 |
| The distance to rivers | 0.207 | 4.833 |
| The distance to ditches | 0.329 | 3.037 |
| Elevation | 0.888 | 1.126 |
| Slope | 0.874 | 1.144 |
