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

Touzet and Varré Algorithms for Molecular Biology 2007 2:15   doi:10.1186/1748-7188-2-15