Set vertex attributes

Set vertex attributes

Usage

set_vertex_attr(graph, name, index = V(graph), value)

Arguments

graph

The graph.

name

The name of the attribute to set.

index

An optional vertex sequence to set the attributes of a subset of vertices.

value

The new value of the attribute for all (or index) vertices. If NULL, the input is returned unchanged.

Value

The graph, with the vertex attribute added or set.

See also

Vertex, edge and graph attributes delete_edge_attr(), delete_graph_attr(), delete_vertex_attr(), edge_attr(), edge_attr<-(), edge_attr_names(), graph_attr(), graph_attr<-(), graph_attr_names(), igraph-attribute-combination, igraph-dollar, igraph-vs-attributes, set_edge_attr(), set_graph_attr(), vertex_attr(), vertex_attr<-(), vertex_attr_names()

Examples

g <- make_ring(10) %>%
  set_vertex_attr("label", value = LETTERS[1:10])
g
#> IGRAPH e9c3a66 U--- 10 10 -- Ring graph
#> + attr: name (g/c), mutual (g/l), circular (g/l), label (v/c)
#> + edges from e9c3a66:
#>  [1] 1-- 2 2-- 3 3-- 4 4-- 5 5-- 6 6-- 7 7-- 8 8-- 9 9--10 1--10
plot(g)