All node ids in the graph, in ascending id order.

Ids are assigned sequentially by graph_add() and never reordered, so ascending id order is also insertion order.

Usage

graph_ids(graph)

Arguments

graph

A Graph.

Value

Integer vector of node ids, sorted ascending.

See also

Other graph functions: Graph(), graph_add(), graph_get(), graph_import(), graph_new(), graph_replace(), graph_toposort()