Table 6 Cost comparison Expected number of undetected regions included in the true cluster E(s* - S), expected number of detected regions not in the true cluster E(L - S) and the ratio of costs C/C2 (r = 1, 2) incurred by incomplete identification of the true cluster. The spatial scan statistic with low values is better.
From: A flexibly shaped spatial scan statistic for detecting clusters
Hot-spot Cluster | Scan statistic | E(s* - S) | E(L - S) | the ratio C/C2 | |
|---|---|---|---|---|---|
r = 1 | r = 2 | ||||
A = {14, 15, 20} | Flexible (K = 15) | 0.108 | 2.951 | 3.059 | 3.167 |
Circular (K = 15) | 0.065 | 0.722 | 0.787 | 0.852 | |
B = {14, 15, 20, 26} | Flexible (K = 15) | 0.097 | 2.548 | 2.645 | 2.742 |
Circular (K = 15) | 0.735 | 2.525 | 3.260 | 3.995 | |
C = {14, 15, 26, 27} | Flexible (K = 15) | 0.492 | 2.243 | 2.735 | 3.227 |
Circular (K = 15) | 1.736 | 3.153 | 4.889 | 6.625 | |
D = {73, 74, 75, 76, 78} | Flexible (K = 15) | 1.774 | 1.088 | 2.862 | 4.636 |
Circular (K = 15) | 2.770 | 1.709 | 4.479 | 7.249 | |