The average correlation value of DPGs.

<p>The average correlation value of DPGs is calculated between the pairs that linked two functional sets and without the linkage. The absolute correlation value is used, and the average correlation value is calculated based on the quartiles. Similar to <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0078896#pone-0078896-g003" target="_blank">Figure 3</a>, the interaction rate >0.07 is first selected to form the interaction map, and then the DPGs which linked the sets are chosen to calculate the average correlation value, which is shown in this figure as “inter0.07”. “Other” indicates the value of other DPGs. “inter0.08”, “inter0.1”, and “inter0.2” shows the corresponding interaction rate >0.08, >0.1, and >0.2. “Module 1” and “Module 2” display the correlation value of DPGs that form module 1 and module 2. Correlation value is calculated based on GSE3526 and GSE2109.