Get the id of a graph

Graph ids are used to check that a vertex or edge sequence belongs to a graph. If you create a new graph by changing the structure of a graph, the new graph will have a new id. Changing the attributes will not change the id.

Usage

graph_id(x, ...)

Arguments

x

A graph or a vertex sequence or an edge sequence.

...

Not used currently.

Value

The id of the graph, a character scalar. For vertex and edge sequences the id of the graph they were created from.

Examples

g <- make_ring(10)
graph_id(g)
#> [1] "0aa21ecd-bea2-4ea6-8000-72b7c67f1ef6"
graph_id(V(g))
#> [1] "0aa21ecd-bea2-4ea6-8000-72b7c67f1ef6"
graph_id(E(g))
#> [1] "0aa21ecd-bea2-4ea6-8000-72b7c67f1ef6"

g2 <- g + 1
graph_id(g2)
#> [1] "f305bf3b-6ace-47ee-8193-b930ba09d008"