The structure of a network confers properties not only on the network as a whole, but also upon individual nodes. The clustering coefficients just discussed are one such property, which measure how richly integrated the local environment around a node is (Figure 3C). Another set of measures of much practical use are measures of node centrality, which indicate to what extent a node plays a “central” or important role within a network. As with the measures for network efficiency, there are multiple methods to assay node centrality, and we highlight two of the simplest here.
