Query edge attributes of a graph
edge_attr(graph, name, index = E(graph))The graph
The name of the attribute to query. If missing, then all edge attributes are returned in a list.
An optional edge sequence, to query edge attributes for a subset of edges.
The value of the edge attribute, or the list of all
edge attributes if name is missing.
Other graph attributes:
delete_edge_attr(),
delete_graph_attr(),
delete_vertex_attr(),
edge_attr<-(),
edge_attr_names(),
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(),
vertex_attr()
# NOT RUN {
g <- make_ring(10) %>%
set_edge_attr("weight", value = 1:10) %>%
set_edge_attr("color", value = "red")
g
plot(g, edge.width = E(g)$weight)
# }
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