is.multiple: Find the multiple or loop edges in a graph

In igraph: Network Analysis and Visualization

Find the multiple or loop edges in a graph

Description

is.multiple() was renamed to which_multiple() to create a more consistent API.

Usage

is.multiple(graph, eids = E(graph))

Arguments

graph	The input graph.
eids	The edges to which the query is restricted. By default this is all edges in the graph.

Related documentation in the C library

is_multiple(), edges(), get_eids(), vcount(), ecount()

igraph documentation built on May 4, 2026, 9:07 a.m.