From: Validation of models predicting modulus of elasticity in Douglas-fir trees, boles, and logs
Calibration dataset | Validation dataset | Comments | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Fixed effectsa | R 2 marg | R 2 cond | AIC | RMSE | MAPE | TP rate | RMSE | MAPE | TP rate | |
(GPa) | (%) | (%) | (GPa) | (%) | (%) | |||||
V 2 | 0.43 | 0.63 | 1513 | 1.3 | 10 | 61 | 1.4 | 11 | 74 | Best 1-variable |
D | 0.02 | 0.46 | 1695 | 1.9 | 15 | 2 | 1.7 | 14 | 0 | Worst |
H | 0.06 | 0.58 | 1647 | 1.8 | 14 | 0 | 1.7 | 13 | 0 | |
A | 0.09 | 0.55 | 1649 | 1.7 | 14 | 21 | 1.6 | 13 | 17 | |
E | 0.51 | 0.57 | 1501 | 1.2 | 10 | 64 | 1.4 | 10 | 62 | |
V 2 + ρ | 0.53 | 0.61 | 1485 | 1.2 | 9 | 67 | 1.4 | 10 | 74 | Best validation |
V 2 + T | 0.44 | 0.64 | 1498 | 1.3 | 10 | 62 | 1.4 | 11 | 71 | |
V 2 + A | 0.43 | 0.63 | 1509 | 1.3 | 10 | 61 | 1.4 | 11 | 71 | |
E + D | 0.53 | 0.65 | 1471 | 1.2 | 9 | 64 | 1.4 | 10 | 60 | |
E + T | 0.54 | 0.59 | 1480 | 1.2 | 9 | 64 | 1.4 | 11 | 57 | |
E + A | 0.62 | 0.69 | 1424 | 1.1 | 9 | 71 | 1.4 | 10 | 69 | Best equal AIC |
E + H | 0.56 | 0.69 | 1436 | 1.2 | 9 | 64 | 1.4 | 10 | 67 | |
A + T | 0.12 | 0.53 | 1636 | 1.7 | 14 | 33 | 1.5 | 12 | 36 | |
A + ρ | 0.12 | 0.56 | 1645 | 1.7 | 13 | 27 | 1.6 | 13 | 21 | |
H + ρ | 0.08 | 0.62 | 1638 | 1.8 | 14 | 22 | 1.7 | 13 | 12 | |
D + A | 0.25 | 0.54 | 1621 | 1.6 | 13 | 39 | 1.6 | 13 | 45 | |
D + H | 0.13 | 0.60 | 1626 | 1.7 | 14 | 19 | 1.6 | 13 | 21 | |
D + ρ + H | 0.17 | 0.62 | 1610 | 1.7 | 13 | 27 | 1.7 | 13 | 26 | |
D + ρ + A | 0.31 | 0.54 | 1611 | 1.5 | 12 | 45 | 1.6 | 13 | 50 | |
V 2 + ρ + D | 0.54 | 0.67 | 1469 | 1.2 | 9 | 67 | 1.4 | 10 | 69 | |
V 2 + ρ + T | 0.56 | 0.67 | 1459 | 1.2 | 9 | 68 | 1.4 | 11 | 74 | Similar to V 2 |
V 2 + ρ + A | 0.63 | 0.70 | 1425 | 1.1 | 9 | 73 | 1.4 | 11 | 69 | |
V 2 + ρ + H | 0.55 | 0.69 | 1439 | 1.2 | 9 | 65 | 1.4 | 11 | 69 | |
V 2 + ρ + A + D | 0.64 | 0.70 | 1424 | 1.1 | 9 | 70 | 1.5 | 11 | 69 | Best equal AIC |