Incident vertices of some graph edges — ends • igraph

Incident vertices of some graph edges

ends(graph, es, names = TRUE)

Arguments

graph: The input graph
es: The sequence of edges to query
names: Whether to return vertex names or numeric vertex ids. By default vertex names are used.

Value

A two column matrix of vertex names or vertex ids.

See also

Other structural queries: [.igraph(), [[.igraph(), adjacent_vertices(), are_adjacent(), get_edge_ids(), gorder(), gsize(), head_of(), incident(), incident_edges(), is_directed(), neighbors(), tail_of()

Examples

g <- make_ring(5)
ends(g, E(g))
#>      [,1] [,2]
#> [1,]    1    2
#> [2,]    2    3
#> [3,]    3    4
#> [4,]    4    5
#> [5,]    1    5