igraph (version 1.3.5)

vertex_attr: Query vertex attributes of a graph

Description

Query vertex attributes of a graph

Usage

vertex_attr(graph, name, index = V(graph))

Value

The value of the vertex attribute, or the list of all vertex attributes, if name is missing.

Arguments

graph

The graph.

name

Name of the attribute to query. If missing, then all vertex attributes are returned in a list.

index

A vertex sequence, to query the attribute only for these vertices.

See Also

Other graph attributes: delete_edge_attr(), delete_graph_attr(), delete_vertex_attr(), edge_attr<-(), edge_attr_names(), edge_attr(), graph_attr<-(), graph_attr_names(), graph_attr(), igraph-dollar, igraph-vs-attributes, set_edge_attr(), set_graph_attr(), set_vertex_attr(), vertex_attr<-(), vertex_attr_names()

Examples

g <- make_ring(10) %>%
  set_vertex_attr("color", value = "red") %>%
  set_vertex_attr("label", value = letters[1:10])
vertex_attr(g, "label")
vertex_attr(g)
plot(g)