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.
graph_id(x, ...)
x |
A graph or a vertex sequence or an edge sequence. |
... |
Not used currently. |
The id of the graph, a character scalar. For vertex and edge sequences the id of the graph they were created from.
g <- make_ring(10) graph_id(g) graph_id(V(g)) graph_id(E(g)) g2 <- g + 1 graph_id(g2)
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