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. 2007 Dec 11;2:15. doi: 10.1186/1748-7188-2-15

Table 2.

Granularity required for accurate computation with From P-value to Score. This table indicates the granularity value that is required for FROM P-VALUE TO SCORE to compute the accurate score threshold without any error. Each row of the table corresponds to a P-value: 10-3, 10-4, 10-5, and 10-6. Each cell gives the percentage of matrices for which FROM P-VALUE TO SCORE ends at the granularity of the corresponding column. For example, 52.4% matrices need a granularity larger than or equal to 10-3 when computing threshold for P-value 10-5.

Granularity
P-value 1e-1 1e-2 1e-3 1e-4 1e-5 1e-6 1e-7 1e-8 1e-9
1e-3 9 22.9 39.3 63.1 77.8 88.5 91.8 95.1 100
1e-4 7.7 20.2 49 70.2 85.6 92.3 97.1 99 100
1e-5 1.2 25.6 52.4 76.8 88.4 94.2 96.5 96.5 100
1e-6 5.4 42.7 66.7 82.7 94.7 96 98.7 98.7 100