structure.statistics:
Structural Statistics of an Ecological Network
Description
This function returns several network statistics that describe a
network.
Usage
structure.statistics(A = "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.
References
Fath, B. D., Borrett, S. R. 2006. A Matlab function for Network
Environ Analysis. Environ. Model. Softw. 21, 375-405.