Query or set attributes of the edges in an edge sequence
The $ operator is a syntactic sugar to query and set
edge attributes, for edges in an edge sequence.
## S3 replacement method for class 'igraph.es' x[[i]] <- value ## S3 replacement method for class 'igraph.es' x[i] <- value ## S3 method for class 'igraph.es' x$name ## S3 replacement method for class 'igraph.es' x$name <- value E(x, path = NULL, P = NULL, directed = NULL) <- value
x |
An edge sequence. For |
i |
Index. |
value |
New value of the attribute, for the edges in the edge sequence. |
name |
Name of the edge attribute to query or set. |
path |
Select edges along a path, given by a vertex sequence See
|
P |
Select edges via pairs of vertices. See |
directed |
Whether to use edge directions for the |
The query form of $ is a shortcut for edge_attr,
e.g. E(g)[idx]$attr is equivalent to edge_attr(g, attr,
E(g)[idx]).
The assignment form of $ is a shortcut for
set_edge_attr, e.g. E(g)[idx]$attr <- value is
equivalent to g <- set_edge_attr(g, attr, E(g)[idx], value).
A vector or list, containing the values of the attribute
name for the edges in the sequence. For numeric, character or
logical attributes, it is a vector of the appropriate type, otherwise
it is a list.
Other vertex and edge sequences:
E(),
V(),
igraph-es-indexing2,
igraph-es-indexing,
igraph-vs-attributes,
igraph-vs-indexing2,
igraph-vs-indexing,
print.igraph.es(),
print.igraph.vs()
Other vertex and edge sequences:
E(),
V(),
igraph-es-indexing2,
igraph-es-indexing,
igraph-vs-attributes,
igraph-vs-indexing2,
igraph-vs-indexing,
print.igraph.es(),
print.igraph.vs()
# color edges of the largest component
largest_comp <- function(graph) {
cl <- components(graph)
V(graph)[which.max(cl$csize) == cl$membership]
}
g <- sample_(gnp(100, 1/100),
with_vertex_(size = 3, label = ""),
with_graph_(layout = layout_with_fr)
)
giant_v <- largest_comp(g)
E(g)$color <- "orange"
E(g)[giant_v %--% giant_v]$color <- "blue"
plot(g)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.