centrality index for signed networks by Everett and Borgatti

pn_index(g, mode = c("all", "in", "out"))

Arguments

g

igraph object. Must have a "sign" edge attribute.

mode

character string, “out” for out-pn, “in” for in-pn or “all” for undirected networks.

Value

centrality scores as numeric vector.

References

Everett, M. and Borgatti, S. (2014) Networks containing negative ties. Social Networks 38 111-120

Author

David Schoch

Examples

library(igraph)
A <- matrix(c(0,  1,  0,  1,  0,  0,  0, -1, -1,  0,
              1,  0,  1, -1,  1, -1, -1,  0,  0,  0,
              0,  1,  0,  1, -1,  0,  0,  0, -1,  0,
              1, -1,  1,  0,  1, -1, -1,  0,  0,  0,
              0,  1, -1,  1,  0,  1,  0, -1,  0, -1,
              0, -1,  0, -1,  1,  0,  1,  0,  1, -1,
              0, -1,  0, -1,  0,  1,  0,  1, -1,  1,
             -1,  0,  0,  0, -1,  0,  1,  0,  1,  0,
             -1,  0, -1,  0,  0,  1, -1,  1,  0,  1,
              0,  0,  0,  0, -1, -1,  1,  0,  1,  0), 10, 10)
g <- igraph::graph_from_adjacency_matrix(A,"undirected",weighted = "sign")
pn_index(g)
#>  [1] 0.9009747 0.8613482 0.9076997 0.8613482 0.8410658 0.8496558 0.8617321
#>  [8] 0.9015909 0.8509848 0.9072930