Module identification based on various network inference methods in simulation with non-linear gene-gene relationships. The data set is composed of 200 genes across 200 samples. 3 true modules are designed. Two of them, labeled with colors turquoise and blue, contain linear and non-linear (quadratic) gene-gene relationships. For each adjacency, the clustering tree and module colors are shown. True simulated module assignment is shown by the first color band underneath each tree. On top of each panel is the Rand index between inferred and simulated module assignments.