Fig. 4From: Stem taper function for sweet chestnut (Castanea sativa Mill.) coppice stands in northwest SpainResiduals against: Lag1-residuals (left column), Lag2-residuals (middle column), and Lag3-residuals (right column) for the model of Fang et al. (2000) fitted without considering the autocorrelation parameters (first row) and using continuous time autoregressive error structures of first and second order (second and third rows, respectively)Back to article page