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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