Fig. 4
From: Spatially varying effects of measured confounding variables on disease risk
A Plot of Freeman-Tukey Transformed Non-White Live-Birth Proportion XFT1 versus Freeman-Tukey Transformed SIDS Incidence YFT for 99 North Carolina Counties and Fitted Regression Lines based on Generalized Map-based Pattern Recognition Procedure. Red Symbol 
and Blue Symbol 
Indicate Counties in Hierarchical Intensity Clusters of Peak Incidence and Incidence Paucity, Respectively. B Plot of Freeman-Tukey Transformed Non-White Live-Birth Proportion XFT1 versus Freeman-Tukey Transformed SIDS Incidence YFT for 99 North Carolina Counties and Fitted Regression Lines based on Spatial Scan Statistic. Red Symbol 
and Blue Symbol 
Indicate Counties in Likely SIDS Clusters of Peak Incidence and Incidence Paucity, Respectively