geom_nodes | R Documentation |
All arguments to this geom are identical to those of
geom_point
.
geom_nodes(
mapping = NULL,
data = NULL,
position = "identity",
na.rm = FALSE,
show.legend = NA,
inherit.aes = TRUE,
...
)
mapping |
Set of aesthetic mappings created by |
data |
The data to be displayed in this layer. There are three options: If A A |
position |
Position adjustment, either as a string naming the adjustment
(e.g. |
na.rm |
If |
show.legend |
logical. Should this layer be included in the legends?
|
inherit.aes |
If |
... |
Other arguments passed on to |
if (require(network) && require(sna)) {
data(flo, package = "network")
n <- network(flo, directed = FALSE)
# just nodes
ggplot(n, aes(x, y)) +
geom_nodes(size = 3, shape = 21, colour = "steelblue") +
theme_blank()
# with edges
ggplot(n, aes(x, y, xend = xend, yend = yend)) +
geom_edges(colour = "steelblue") +
geom_nodes(size = 3, shape = 21, colour = "steelblue", fill = "white") +
theme_blank()
# with nodes sized according to degree centrality
ggplot(n, aes(x, y, xend = xend, yend = yend)) +
geom_edges(colour = "steelblue") +
geom_nodes(size = degree(n), shape = 21, colour = "steelblue", fill = "white") +
theme_blank()
# with nodes colored according to betweenness centrality
n %v% "betweenness" <- betweenness(flo)
ggplot(n, aes(x, y, xend = xend, yend = yend)) +
geom_edges(colour = "grey50") +
geom_nodes(aes(colour = betweenness), size = 3) +
scale_colour_gradient(low = "gold", high = "tomato") +
theme_blank() +
theme(legend.position = "bottom")
}
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