Figure 2From: Detecting and diagnosing hotspots for the enhanced management of hospital emergency departments in Queensland, Australia An example of recursive partitioning for 2 variables. An example of the tree growing procedure over two variables. In this case each cell has an expected poisson count with mean 2. The target space is shown in panel a) with hotspot illustrated in red. The first generation partition is in panel b). Each of the two second generation partitions is in panel c). And each of the four third generation partitions are in panel d).Back to article page