Find the edge ids based on the incident vertices of the edges

get.edge.ids() was renamed to get_edge_ids() to create a more consistent API.

Usage

get.edge.ids(graph, vp, directed = TRUE, error = FALSE, multi = deprecated())

graph: The input graph.
vp: The incident vertices, given as a two-column data frame, two-column matrix, or vector of vertex ids or symbolic vertex names. For a vector, the values are interpreted pairwise, i.e. the first and second are used for the first edge, the third and fourth for the second, etc.
directed: Logical scalar, whether to consider edge directions in directed graphs. This argument is ignored for undirected graphs.
error: Logical scalar, whether to report an error if an edge is not found in the graph. If FALSE, then no error is reported, and zero is returned for the non-existant edge(s).
multi