Table 7. Statistics of residuals with the anamorphic and polymorphic equations fitted to the diameter at root collar of control plot.
Model types | Model names | Estimated coefficients | MSE | Std. Dev | Skew-ness | Kurtosis | Shapiro-wilk |
α | β | γ |
Ana-morphic | Schumacher | - | 4.0607 | 1.0434 | 0.0454 | 0.2125 | 0.3331 | 0.2698 | 0.977099 |
Chap-Rich | - | 0.2334 | −1.4282 | 0.0456 | 0.2128 | 0.3459 | 0.2675 | 0.97702 |
Gompertz | 0.0577 | −0.9939 | − | 0.0522 | 0.2272 | 0.4885 | 0.3670 | 0.97645 |
Hossfeld | - | −4.0995 | 1.8641 | 0.0621 | 0.2364 | 0.1087 | 1.0250 | 0.9789 |
Poly-morphic | Schumacher | 5.4089 | 0.1268 | - | 0.0459 | 0.2139 | 0.4734 | 0.4507 | 0.977179 |
Chap-Rich | −2.2174 | 1.0136 | −2.4770 | 0.0621 | 0.2365 | 0.1918 | 0.2654 | 0.986884 |
Gompertz | 6.5409 | 0.0402 | 0.00181 | 0.0459 | 0.2133 | 0.4186 | 0.3720 | 0.979206 |
Hossfeld | 14.0856 | - | 0.7003 | 0.0462 | 0.2145 | 0.4483 | 0.3865 | 0.977896 |