The size of the graph (number of edges)

ecount() and gsize() are aliases.

Usage

gsize(graph)

ecount(graph)

Arguments

graph

The graph.

Value

Numeric scalar, the number of edges.

See also

Other structural queries: [.igraph(), [[.igraph(), adjacent_vertices(), are_adjacent(), ends(), get.edge.ids(), gorder(), head_of(), incident(), incident_edges(), is_directed(), neighbors(), tail_of()

Examples

g <- sample_gnp(100, 2 / 100)
gsize(g)
#> [1] 101
ecount(g)
#> [1] 101

# Number of edges in a G(n,p) graph
replicate(100, sample_gnp(10, 1 / 2), simplify = FALSE) %>%
  vapply(gsize, 0) %>%
  hist()