igraph (version 1.0.0)

as_ids: Convert a vertex or edge sequence to an ordinary vector

Description

Convert a vertex or edge sequence to an ordinary vector

Usage

as_ids(seq)
## S3 method for class 'igraph.vs':
as_ids(seq)
## S3 method for class 'igraph.es':
as_ids(seq)

Arguments

seq

The vertex or edge sequence.

Value

• A character or numeric vector, see details below.

Details

For graphs without names, a numeric vector is returned, containing the internal numeric vertex or edge ids.

For graphs with names, and vertex sequences, the vertex names are returned in a character vector.

For graphs with names and edge sequences, a character vector is returned, with the bar notation: a|b means an edge from vertex a to vertex b.

Examples

g <- make_ring(10)
as_ids(V(g))
as_ids(E(g))

V(g)$name <- letters[1:10]
as_ids(V(g))
as_ids(E(g))