igraph (version 1.2.11)

dyad_census: Dyad census of a graph

Description

Classify dyads in a directed graphs. The relationship between each pair of vertices is measured. It can be in three states: mutual, asymmetric or non-existent.

Usage

dyad_census(graph)

Arguments

graph

The input graph. A warning is given if it is not directed.

Value

A named numeric vector with three elements:

mut

The number of pairs with mutual connections.

asym

The number of pairs with non-mutual connections.

null

The number of pairs with no connection between them.

References

Holland, P.W. and Leinhardt, S. A Method for Detecting Structure in Sociometric Data. American Journal of Sociology, 76, 492--513. 1970.

Wasserman, S., and Faust, K. Social Network Analysis: Methods and Applications. Cambridge: Cambridge University Press. 1994.

See Also

triad_census for the same classification, but with triples.

Examples

# NOT RUN {
g <- sample_pa(100)
dyad_census(g)
# }