Computes the small-world index of an unweighted graph. When the graph is weighted, weights are removed and every nonzero edge weight is set to 1.
smallworldIndex(x)
A qgraph object.
Watts, D. J., & Strogatz, S. H. (1998). Collective dynamics of 'small-world' networks. nature, 393(6684), 440-442.