Fig. 4.

Truncated histograms of −log₁₀ p-values for 3-patterns. Four permutation null groups are plotted. The vertical axes are truncated above at 10 and the horizontal axes are truncated below at 4. The blue bars represent the 3-patterns observed in the data. The white bars (with black borders) represent the average histogram over all the permuted data sets. The dashed line indicates the 5% corrected p-value cutoff. The dotted line represents p_nfp0.2.