is_directed {igraph} | R Documentation |
Check whether a graph is directed
is_directed(graph)
graph |
The input graph |
Logical scalar, whether the graph is directed.
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
; neighbors
;
tail_of
g <- make_ring(10) is_directed(g) g2 <- make_ring(10, directed = TRUE) is_directed(g2)