tail_of
From igraph v1.0.1
by Gabor Csardi
Tails of the edge(s) in a graph
For undirected graphs, head and tail is not defined. In this case
tail_of returns vertices incident to the supplied edges, and
head_of returns the other end(s) of the edge(s).
Usage
tail_of(graph, es)Arguments
- graph
The input graph.
- es
The edges to query.
Value
A vertex sequence with the tail(s) of the edge(s).
See Also
Other structural queries: [.igraph;
[[.igraph; adjacent_vertices;
are.connected, are_adjacent;
ecount, gsize;
ends, get.edge,
get.edges; get.edge.ids;
gorder, vcount;
head_of; incident_edges;
incident; is.directed,
is_directed; neighbors
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