A vertex is a neighbor of another one (in other words, the two vertices are adjacent), if they are incident to the same edge.
neighbors(graph, v, mode = c("out", "in", "all", "total"))
The input graph.
The vertex of which the adjacent vertices are queried.
Whether to query outgoing (‘out’), incoming (‘in’) edges, or both types (‘all’). This is ignored for undirected graphs.
A vertex sequence containing the neighbors of the input vertex.
Other structural queries:
g <- make_graph("Zachary") n1 <- neighbors(g, 1) n34 <- neighbors(g, 34) intersection(n1, n34)
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