Table 1.

Three Criteria for Determining the Sampling Precision for PDB: 1AVX, Evaluated as a Function of the Clustering Threshold

Threshold in Ångstroms	p Value	Cramer’s V	Population of Models in Contingency Table [%]
0.4	0.0	1.0	0.0
2.9	0.0	0.1	10.1
5.4	0.0	0.2	82.7
7.9	0.0	0.2	96.2
10.4	0.0	0.1	98.7
12.9	0.3	0.0	98.7
15.4	0.5	0.0	98.7
17.9	1.0	0.0	98.8
20.4	1.0	0.0	99.8
22.9	1.0	0.0	100.0
25.4	1.0	0.0	100.0
27.9	1.0	0.0	100.0
30.4	1.0	0.0	100.0
32.9	1.0	0.0	100.0
35.4	1.0	0.0	100.0
37.9	1.0	0.0	100.0
40.4	1.0	0.0	100.0
42.9	1.0	0.0	100.0

The three criteria are 1) p values and 2) Cramer’s V, both from the χ² test; and 3) the population of models in the contingency table after eliminating small clusters.