graph: Graph

In echarts4r: Create Interactive Graphs with 'Echarts JavaScript' Version 5

Graph

Description

Create a graph.

Usage

e_graph(e, layout = "force", name = NULL, rm_x = TRUE, rm_y = TRUE, ...)

e_graph_gl(
  e,
  layout = "force",
  name = NULL,
  rm_x = TRUE,
  rm_y = TRUE,
  ...,
  itemStyle = list(opacity = 1)
)

e_graph_nodes(
  e,
  nodes,
  names,
  value,
  size,
  category,
  symbol = NULL,
  legend = TRUE
)

e_graph_edges(e, edges, source, target, value, size)

Arguments

e	An echarts4 object as returned by e_charts.
layout	Layout, one of force, none or circular.
name	Name of graph.
rm_x, rm_y	Whether to remove the x and y axis, defaults to TRUE.
...	Any other parameter.
itemStyle	This option is available for for GL and canvas graph but is only necessary for GL.
nodes	Data.frame of nodes.
names	Names of nodes, unique.
value	Values of nodes or edges.
size	Sizes of nodes or edges.
category	Group of nodes (i.e.: group membership).
symbol	Symbols of nodes.
legend	Whether to add serie to legend.
edges	Data.frame of edges.
source, target	Column names of source and target.

See Also

Additional arguments, e_modularity

Examples

value <- rnorm(10, 10, 2)

nodes <- data.frame(
  name = sample(LETTERS, 10),
  value = value,
  size = value,
  symbol = sample(c("circle", "rect", "triangle"), 10, replace = TRUE),
  grp = rep(c("grp1", "grp2"), 5),
  stringsAsFactors = FALSE
)

value_edges <- sample(1:100, 20, replace = TRUE)
edges <- data.frame(
  source = sample(nodes$name, 20, replace = TRUE),
  target = sample(nodes$name, 20, replace = TRUE),
  value = value_edges,
  size = ceiling(value_edges/20),
  stringsAsFactors = FALSE
)

e_charts() |>
  e_graph() |>
  e_graph_nodes(nodes, name, value, size, grp, symbol) |>
  e_graph_edges(edges, source, target, value, size) |>
  e_tooltip()

# Use graphGL for larger networks
nodes <- data.frame(
  name = paste0(LETTERS, 1:1000),
  value = rnorm(1000, 10, 2),
  size = rnorm(1000, 10, 2),
  grp = rep(c("grp1", "grp2"), 500),
  stringsAsFactors = FALSE
)

edges <- data.frame(
  source = sample(nodes$name, 2000, replace = TRUE),
  target = sample(nodes$name, 2000, replace = TRUE),
  stringsAsFactors = FALSE
)

e_charts() |>
  e_graph_gl() |>
  e_graph_nodes(nodes, name, value, size, grp) |>
  e_graph_edges(edges, source, target)

echarts4r documentation built on July 9, 2023, 7:26 p.m.