Set one or more edge attributes
Arguments
- graph
The graph.
- name
The name of the edge attribute to set. If missing, then
value
must be a named list, and its entries are set as edge attributes.- index
An optional edge sequence to set the attributes of a subset of edges.
- value
The new value of the attribute(s) for all (or
index
) edges.
See also
Vertex, edge and graph attributes
delete_edge_attr()
,
delete_graph_attr()
,
delete_vertex_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<-()
,
vertex_attr_names()
Examples
g <- make_ring(10)
edge_attr(g) <- list(
name = LETTERS[1:10],
color = rep("green", gsize(g))
)
edge_attr(g, "label") <- E(g)$name
g
#> IGRAPH cebad30 U--- 10 10 -- Ring graph
#> + attr: name (g/c), mutual (g/l), circular (g/l), name (e/c), color
#> | (e/c), label (e/c)
#> + edges from cebad30:
#> [1] 1-- 2 2-- 3 3-- 4 4-- 5 5-- 6 6-- 7 7-- 8 8-- 9 9--10 1--10
plot(g)