Generalizing sample tree information with semiparametric and parametric models.

Autor: Kangas, Annika, Korhonen, Kari
Jazyk: angličtina
Rok vydání: 1995
Předmět:
Zdroj: Silva Fennica, Vol 29, Iss 2 (1995)
Druh dokumentu: article
ISSN: 2242-4075
DOI: 10.14214/sf.a9204
Popis: Semiparametric models, ordinary regression models and mixed models were compared for modelling stem volume in National Forest Inventory data. MSE was lowest for the mixed model. Examination of spatial distribution of residuals showed that spatial correlation of residuals is lower for semiparametric and mixed models than for parametric models with fixed regressors. Mixed models and semiparametric models can both be used for describing the effect of geographic location on stem form.
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