Figure 1.

Q-Q plot of gene-wise P values and their distribution versus gene length. The three rows of panels represent the method of VEGAS-all, VEGAS-top, and minP, respectively. In each row (method), the left panel displays the Q-Q plot, while the right panel shows the distribution of gene-wise P values versus gene length. In the right panel, gene length (X-axis) was separated to bins, each of which has 100 genes; the Y-axis shows the proportion of significant genes (denoted as "SigGenes") in each length bin. SigGenes were defined as those with gene-wise P values <0.05.

Jia and Zhao BMC Genomics 2012 13(Suppl 6):S15   doi:10.1186/1471-2164-13-S6-S15