Parameter | Estimate | SE | RMSE | MAE | R2 | AIC |
---|---|---|---|---|---|---|
Simple H–D model | ||||||
a | 2.93947 | 0.14203 | 3.392 | 2.701 | 0.665 | |
b | 0.20149 | 0.00344 | ||||
Simple NLME model | ||||||
a | 2.9061143 | 0.18626177 | 3.344 | 2.645 | 0.675 | 1694 |
b | 0.2022838 | 0.00342757 | ||||
\({\sigma }_{u}^{2}\) | 0.05626726 | 0.2372072 | ||||
\({\sigma }^{2}\) | 1.24739206 | 1.1168671 | ||||
\(\delta\) | 0.2822094 | |||||
Generalized H–D model | ||||||
a0 | 5.542 | 0.6898 | 3.342 | 2.625 | 0.675 | |
a1 | − 0.01371 | 0.003524 | ||||
b1 | 0.001803 | 0.00008081 | ||||
b2 | 0.02898 | 0.002556 | ||||
Generalized NLME H–D model | ||||||
a0 | 5.485194 | 0.7253538 | 3.338 | 2.622 | 0.676 | 1688 |
a1 | − 0.013088 | 0.0036392 | ||||
b1 | 0.001771 | 0.0000727 | ||||
b2 | 0.029397 | 0.0022909 | ||||
\({\sigma }_{u}^{2}\) | 1.825351e-09 | 4.272413e-05 | ||||
\({\sigma }^{2}\) | 1.282654 | 1.132543e + 00 | ||||
\(\delta\) | 0.2767384 |