Fig. 1
From: Forest modelling: the gamma shape mixture model and simulation of tree diameter distributions
Correspondence analysis (CA) ordination diagrams (CA1 and CA2 are ordination axes); 21 variables were used in the analysis to describe empirical tree DBH distributions. a ‘Ellipse’ diagram—the weighted correlation defines the direction of the principal axis of the ellipse. b ‘Spider’ diagram—each point is connected to the group centroid (large black circles). Cluster RS—rotated-sigmoid DBH distributions, cluster BMS— typical bimodal M-shape DBH distributions, cluster UID—unimodal, irregularly descending DBH distributions