Estrada proposes that graphs can be classified into four different classes. We call this the Estrada class. These are: I. Expander-like II. Cluster III. Core-Periphery IV. Mixed.
estrada.class(G, evthresh = 0.001)
Estrada class (\(1-4\))
a \(p*p\) adjacency matrix of a Graph
tolerance for a zero eigenvalue
Estrada, E. (2007). Topological structural classes of complex networks. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 75(1), 1-12. doi:10.1103/PhysRevE.75.016103