Can random components explain differences in the height–diameter relationship in mixed uneven-aged stands?

Table 2 Statistics for the fitting of the basic and generalised mixed h–d models

Equation	Type	RMSE	EF	E	AIC
(7)	Basic ONLS	3.767	0.5598	0.0024	60,317
(9)	Basic mixed	2.564	0.7960	0.5211	42,486
(11)	Basic mixed by sp	2.406	0.8203	−0.0462	39,959
(8)	Generalised ONLS	3.207	0.6809	0.0026	53,008
(10)	Generalised mixed	2.271	0.8400	0.1423	37,317
(12)	Generalised mixed by sp	2.225	0.8463	−0.0362	36,394

Results for Eqs. 11 and 12 are summarised for all the species but are not normalised by the number of trees of each species

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