Fig. 6
From: Statistical analysis in support of maintaining a healthy traditional Siamese cat population

Classification of subpopulations using hierarchical cluster analysis. Hierarchical clustering separates the Thai cat population (200 individuals in 2016–2017) into three subpopulations. The solution is visualised in a PCA plot along the two principal component axes PC 1 and PC 2, with PC 1 being largely determined by the inbreeding coefficient. The clusplot program applies automatic scaling of the axes. The level of inbreeding is indicated in the legend. Color cycling inadvertently plots ellipse 4 in blue