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

Table 4 Results from the inclusion of stand variables for SM12 AA

Total number of parameters	Expressions for parameters	Goodness of fit			Prediction statistic	Max. VIF
Total number of parameters	Expressions for parameters	MAE	RMSE	R²	RMSE (CV)	Max. VIF
3	\(a=a0\) \(b=b0\) \(c=c0\)	3.282	4.311	0.685	4.322
4	\(a=a0+a1\times {H}_{dom}AA\) \(b=b0\) \(c=c0\)	3.138	4.201	0.701	4.235
5	\(a=a0+a1\times {H}_{dom}AA\) \(b=b0+b1\times RangeDBHAA\) \(c=c0\)	3.100	4.167	0.706	4.210
6	\(a=a0+a1\times {H}_{dom}AA+a2\times GCdAA\) \(b=b0+b1\times RangeDBHAA\) \(c=c0\)	3.088	4.126	0.712	4.181	2.134
7	\(a=a0+a1\times {H}_{dom}AA+a2\times BAAA\) \(b=b0+b1\times DB{H}_{max}AA\) \(c=c0+c1\times RNAA\)	3.068	4.107	0.715	4.178	2.161
8	\(a=a0+a1\times {H}_{dom}AA+a2\times HdAA+a3\times BA\) \(b=b0\) \(c=c0+c1\times HdAA+c2\times ALT\)	3.073	4.080	0.718	4.173	2.362

ISSN: 1297-966X