Neighborhood of graph vertices

graph.neighborhood() was renamed to make_ego_graph() to create a more consistent API.

graph.neighborhood(
  graph,
  order = 1,
  nodes = V(graph),
  mode = c("all", "out", "in"),
  mindist = 0
)

Arguments

graph

The input graph.

order

Integer giving the order of the neighborhood.

nodes

The vertices for which the calculation is performed.

mode

Character constant, it specifies how to use the direction of the edges if a directed graph is analyzed. For ‘out’ only the outgoing edges are followed, so all vertices reachable from the source vertex in at most order steps are counted. For ‘"in"’ all vertices from which the source vertex is reachable in at most order steps are counted. ‘"all"’ ignores the direction of the edges. This argument is ignored for undirected graphs.

mindist

The minimum distance to include the vertex in the result.