Neighboring (adjacent) vertices in a graph
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)