R: Adjacent vertices of multiple vertices in a graph

adjacent_vertices {igraph} | R Documentation

## Adjacent vertices of multiple vertices in a graph

### Description

This function is similar to `neighbors`, but it queries the adjacent vertices for multiple vertices at once.

### Usage

    adjacent_vertices(graph, v, mode = c("out", "in", "all", "total"))

### Arguments

`graph` | Input graph.
`v` | The vertices to query.
`mode` | Whether to query outgoing (‘out’), incoming (‘in’) edges, or both types (‘all’). This is ignored for undirected graphs.

### Value

A list of vertex sequences.

### See Also

Other structural queries: `[.igraph()`, `[[.igraph()`, `are_adjacent()`, `ends()`, `get.edge.ids()`, `gorder()`, `gsize()`, `head_of()`, `incident_edges()`, `incident()`, `is_directed()`, `neighbors()`, `tail_of()`

### Examples

    g <- make_graph("Zachary")
    adjacent_vertices(g, c(1, 34))

[Package igraph version 1.2.10 Index]