netUtils (version 0.8.3)

triad_census_attr: triad census with node attributes

Description

triad census with node attributes

Usage

triad_census_attr(g, vattr)

Value

triad census with node attributes

Arguments

g

igraph object. should be a directed graph

vattr

name of vertex attribute to be used

Author

David Schoch

Details

The node attribute should be integers from 1 to max(attr). The output is a named vector where the names are of the form Txxx-abc, where xxx corresponds to the standard triad census notation and "abc" are the attributes of the involved nodes.

The implemented algorithm is comparable to the algorithm in Lienert et al.

References

Lienert, J., Koehly, L., Reed-Tsochas, F., & Marcum, C. S. (2019). An efficient counting method for the colored triad census. Social Networks, 58, 136-142.

Examples

library(igraph)
set.seed(112)
g <- sample_gnp(20, p = 0.3, directed = TRUE)
# add a vertex attribute
V(g)$type <- rep(1:2, each = 10)
triad_census_attr(g, "type")