Figure 3
Distributions of the P values in different ISI comparisons by controlling the sample sizes (indicated by "n") of G s and G v transcripts to be the same as those of the G a transcripts. One thousand times of re-sampling with replacement was performed for each transcript subgroup to derive the P value distributions. The P values were estimated by using the Mann-Whitney U test. The dashed line indicates P = 0.05 (or -log (P) = 1.301). "Fsig" indicates the fraction of P values in the distribution that is smaller than 0.05. The statistical significance between P value distributions of different transcript subgroups was estimated by using the Kolmogorov-Smirnov test and shown in the upper right corner of each panel.