Fig. 3
From: Diet-related chronic disease in the northeastern United States: a model-based clustering approach
Clustering results for PA and NY. Five clusters were identified in NY (top) and PA (bottom). Although the clusters have heterogeneous spatial distributions, they can be classified according to the NCHS urban-rural classification codes of their component counties: clusters 1 (blue) and 4 (purple) comprise mostly small and non-metropolitan counties; cluster 2 (yellow) contains predominantly non-metropolitan counties; cluster 3 (green) is entirely large central metropolitan counties; and cluster 5 (red) includes large and large fringe metropolitan counties