Density-equalizing Euclidean minimum spanning trees for the detection of all disease cluster shapes -- Wieland et al. 104 (22): 9404 Data Supplement - HTML Page - index.htslp -- Proceedings of the National Academy of Sciences

Wieland et al. 10.1073/pnas.0609457104.

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SI Figure 5

Fig. 5. Construction of the Voronoi diagram cartogram. (a) One hundred cases (green) and 50 controls (red) are distributed on a map. (b) The case locations are superimposed on the Voronoi diagram constructed from the controls. (c) A density-equalized cartogram of the Voronoi diagram distorts the original map so that all Voronoi regions have the same area. New case locations are assigned on the cartogram by randomly plotting each case within its corresponding Voronoi region.