inst/doc/Nodes.R

In ggraph: An Implementation of Grammar of Graphics for Graphs and Networks

## ----include=FALSE------------------------------------------------------------
set.seed(2022)

## ----message=FALSE------------------------------------------------------------
library(ggraph)
library(tidygraph)

set_graph_style(plot_margin = margin(1,1,1,1))
gr <- as_tbl_graph(highschool)

ggraph(gr, layout = 'kk') + 
  geom_point(aes(x = x, y = y))

## -----------------------------------------------------------------------------
head(create_layout(gr, layout = 'kk'))

## -----------------------------------------------------------------------------
ggraph(gr, layout = 'kk') + 
  geom_node_point()

## -----------------------------------------------------------------------------
gr <- tbl_graph(flare$vertices, flare$edges)

ggraph(gr, layout = 'partition') + 
  geom_node_tile(aes(y = -y, fill = depth))

## -----------------------------------------------------------------------------
ggraph(gr, layout = 'dendrogram', circular = TRUE) + 
  geom_edge_diagonal() + 
  geom_node_point(aes(filter = leaf)) + 
  coord_fixed()

## -----------------------------------------------------------------------------
graph <- create_notable('meredith') |> 
  mutate(group = sample(c('A', 'B'), n(), TRUE))

ggraph(graph, 'stress') + 
  geom_node_voronoi(aes(fill = group), max.radius = 1) + 
  geom_node_point() + 
  geom_edge_link() + 
  coord_fixed()

## -----------------------------------------------------------------------------
ggraph(gr, layout = 'treemap', weight = size) + 
  geom_node_tile(aes(fill = depth))

## -----------------------------------------------------------------------------
l <- ggraph(gr, layout = 'partition', circular = TRUE)
l + geom_node_arc_bar(aes(fill = depth)) + 
  coord_fixed()

## -----------------------------------------------------------------------------
l + geom_edge_diagonal() + 
  geom_node_point(aes(colour = depth)) + 
  coord_fixed()