BRAPH: A graph theory software for the analysis of brain connectivity
Graphs can be classified based on their edge weights (weighted or binary) and directionality (directed or undirected). It is possible to transform a directed graph into an undirected one by symmetrization (i.e. by removing the information about the edge directions), and a weighted graph into a binary one by thresholding (i.e. by assigning a value of 1 to the edges above a given threshold and 0 to those below threshold).