Fig. 6

Cluster location and mean shift level. The area shows cluster intervention in simulation study. The shade depth in the first graph represents the mean shift level. The simulated region falls within Cartesian product within 0 and 1 (i.e. [0, 1] × [0,1]). There are two artificial clusters (hot-spots) located on lower-left and top-right. The lower-left cluster has lower relative risk and the top-right cluster has higher relative risk