Set one or more vertex attributes
Usage
vertex_attr(graph, name, index = V(graph)) <- value
Arguments
- graph
The graph.
- name
The name of the vertex attribute to set. If missing, then
value
must be a named list, and its entries are set as vertex attributes.- index
An optional vertex sequence to set the attributes of a subset of vertices.
- value
The new value of the attribute(s) for all (or
index
) vertices.
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()
,
set_vertex_attr()
,
vertex_attr()
,
vertex_attr_names()
Examples
g <- make_ring(10)
vertex_attr(g) <- list(
name = LETTERS[1:10],
color = rep("yellow", gorder(g))
)
vertex_attr(g, "label") <- V(g)$name
g
#> IGRAPH 9060ee2 UN-- 10 10 -- Ring graph
#> + attr: name (g/c), mutual (g/l), circular (g/l), name (v/c), color
#> | (v/c), label (v/c)
#> + edges from 9060ee2 (vertex names):
#> [1] A--B B--C C--D D--E E--F F--G G--H H--I I--J A--J
plot(g)