build_module            Fit a regression tree.
build_moduleR           Build regression tree.
build_moduleR_heuristic
                        Build regression tree with splits are detemined
                        by K-means heuristicly.
calc_likelihood_score   Calculate Gaussian Likelihood score.
get_correlation_list    Calculate correlation within each group.
gnet                    Run GNET2
kneepointDetection      Knee point detection.
plot_gene_group         Plot a module
plot_group_correlation
                        Plot the correlation of each group
plot_tree               Plot the regression tree.
