Usage
set_edge_attr(graph, name, index = E(graph), value)
Arguments
- graph
The graph
- name
The name of the attribute to set.
- index
An optional edge sequence to set the attributes of
a subset of edges.
- value
The new value of the attribute for all (or index
)
edges.
If NULL
, the input is returned unchanged.
Value
The graph, with the edge 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_graph_attr()
,
set_vertex_attr()
,
vertex_attr()
,
vertex_attr<-()
,
vertex_attr_names()
Examples
g <- make_ring(10) %>%
set_edge_attr("label", value = LETTERS[1:10])
g
#> IGRAPH 203a954 U--- 10 10 -- Ring graph
#> + attr: name (g/c), mutual (g/l), circular (g/l), label (e/c)
#> + edges from 203a954:
#> [1] 1-- 2 2-- 3 3-- 4 4-- 5 5-- 6 6-- 7 7-- 8 8-- 9 9--10 1--10
plot(g)