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BRAPH: A graph theory software for the analysis of brain connectivity

Fig 2

Types of graphs.

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).

Fig 2

doi: https://doi.org/10.1371/journal.pone.0178798.g002