structure.statistics: structural statistics

In SEELab/enaR: Tools for Ecological Network Analysis

structural statistics

Description

This function returns several network statistics that describe a network.

Usage

structure.statistics(A = "adjacency matrix")

Arguments

A	An adjacency matrix.

Value

n	Number of nodes in A.
L	Number of direct connections in A.
C	Connectivity of A.
LD	Link density.
lam1A	First dominant eigenvalue of A.
mlam1A	Multiplicity of the dominant eigenvalue.
lam2A	Magnitude of the second largest eigenvalue.
rho	Damping ratio (see Caswell 2001).
R	Distance of lam1A from the bulk of the eigen spectrum.
d	Difference between the dominant eigenvalue and the link density.
no.scc	Number of strongly connected components.
no.scc.big	Number of strongly connected components greater than 1.
pscc	Precent of nodes participating in a strongly connected component.

Author(s)

Matthew K. Lau Stuart R. Borrett

References

Fath, B. D., Borrett, S. R. 2006. A Matlab function for Network Environ Analysis. Environ. Model. Softw. 21, 375-405.

See Also

enaStructure,scc

SEELab/enaR documentation built on April 29, 2023, 8:40 a.m.