This directory contains a set of matlab programs for finding community structures, displaying the community structure, and comparing community structures 

Look at following three files for example usages:

testQcut.m: find community structures that optimizes the modularity using the Qcut algorithm (named QcutPlus)
testHQcut.m: find hierarchical community structures by recursively applying QcutPlus
testCoexpNet.m: construct a gene co-expression network from expression data, then apply QcutPlus
