Vector fields as a framework for modelling the mobility of commodities
Fig 5
Cosine-based clustering of (A, B) municipalities and (C, D) micro-regions.
Using k-medoids clustering (k = 4) (see Section S8 in S1 File) for further explanation), locations are grouped by their cosine similarity values. Clusters, indicated by distinct colours, reveal that in many peripheral locations the commodity flow directions remain stable over the years. Freely available maps are used in this figure (Panel A: [34]; Panel C: [35]).