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. 2010 Jan 27;9:3. doi: 10.1186/1476-072X-9-3

Table 2.

Geo-statistical test for randomness, using the minimum distance between neighbor cases of same value (risk α = 0.1%).

T V
10 20 30 40 50 60 70 80 90 100 150 200 300 400 500
7 H1 H1 H1 H1 H1 H0 H0 H0 H0 H0 H0 H0 H0 H0 H0
14 H1 H1 H1 H1 H0 H0 H0 H0 H0 H0 H0 H0 H0 H0 H0
21 H1 H1 H1 H0 H0 H0 H0 H0 H0 H0 H0 H0 H0 H0 H0
28 H1 H1 H1 H0 H0 H0 H0 H0 H0 H0 H0 H0 H0 H0 H0

Parameter values are as in Table 1 (T and V); H0 = null hypothesis (cannot be differentiated from a random pattern); H1 = alternative hypothesis (non random pattern).