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Table 10 Estimated parameters and goodness of fit of the H–D models for N. pumilio, developed on the basis of the fitting database. For estimates for the models fitted to the complete database, see Table 16 in Appendix

From: Determination of optimal tree height models and calibration designs for Araucaria araucana and Nothofagus pumilio in mixed stands affected to different levels by anthropogenic disturbance in South-Central Chile

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