Table 1 Summary of ‘Jackknife analysis ’ used to determine importance of each environmental variable
From: Mapping risk of plague in Qinghai-Tibetan Plateau, China
Predictor | Data type | Unit | Test gain | Test gain | Test AUC | Test AUC | Percent contribution | Permutation importance |
|---|---|---|---|---|---|---|---|---|
(variable alone) | (variable excluded) | (variable alone) | (variable excluded) | |||||
Elevation | Continuous | Metres | 0.5668 | 1.164 | 0.7848 | 0.8757 | 13.3 | 27.5 |
LSTd | Continuous | Centigrade | 0.3908 | 1.1436 | 0.7435 | 0.876 | 24.6 | 15.2 |
LSTn | Continuous | Centigrade | 0.5623 | 1.2989 | 0.7405 | 0.9034 | 30.2 | 32.2 |
NDVI | Continuous | - | 0.0159 | 1.1834 | 0.5651 | 0.8829 | 7.9 | 14 |
Slope | Continuous | Degrees | 0.0072 | 1.4199 | 0.552 | 0.9025 | 6.6 | 5.2 |
Aspect | Categorical | 9 Categories | 0.1141 | 1.441 | 0.6429 | 0.9121 | 11.6 | 3.5 |
Land Cover | Categorical | 22 Categories | 0.1086 | 1.4787 | 0.6099 | 0.9118 | 5.9 | 2.5 |