Table 4 Predictive accuracy of PNN models trained from samples in single dose range.
Validation set | Training set (dose range, sample number) | MAE (mg/day) | Under-predicted percentage N (%) | Ideal-predicted percentage N (%) | Over-predicted percentage N (%) | MSE (mg/day) |
|---|---|---|---|---|---|---|
Internal | Low, N = 1340 | 0.2597 | 18 (10.7) | 112 (66.7) | 38 (22.6) | 0.1051 |
Intermediate, N = 1533 | 0.0813 | 12 (0.0) | 6014 (96.5) | 189 (3.5) | 0.0282 | |
High, N = 1478 | 0.5467 | 22 (11.9) | 136 (73.5) | 27 (14.6) | 0.5317 | |
External | Low, N = 1340 | 0.2500 | 2 (1.2) | 118 (70.2) | 48 (28.6) | 0.0988 |
Intermediate, N = 1533 | 0.0844 | 15 (0.1) | 7424 (95.1) | 329 (4.8) | 0.0327 | |
High, N = 1478 | 0.6038 | 18 (9.7) | 139 (75.2) | 28 (15.1) | 0.5996 |
