set_cache: Cache a vector in the graph

In rich-iannone/DiagrammeR: Graph/Network Visualization

Cache a vector in the graph

Description

Place any vector in the cache of a graph object of class dgr_graph.

Usage

set_cache(graph, to_cache, name = NULL, col = NULL)

Arguments

graph	A graph object of class dgr_graph.
to_cache	Any vector or data frame. If a data frame is supplied then a single column for the vector to pull must be provided in the col argument.
name	An optional name for the cached vector.
col	If a data frame is provided in to_cache then a column name from that data frame must provided here.

Value

A graph object of class dgr_graph.

Examples

# Create a random graph using the
# `add_gnm_graph()` function
graph <-
  create_graph() %>%
  add_gnm_graph(
    n = 10,
    m = 22,
    set_seed = 23
  )

# Get the closeness values for
# all nodes from `1` to `10` and
# store in the graph's cache
graph <-
  graph %>%
  set_cache(
    name = "closeness_vector",
    to_cache = get_closeness(.),
    col = "closeness"
  )

# Get the graph's cache
graph %>%
  get_cache(name = "closeness_vector")

# Get the difference of betweenness
# and closeness values for nodes in
# the graph and store the vector in
# the graph's cache
graph <-
  graph %>%
  set_cache(
    name = "difference",
    to_cache =
      get_betweenness(.)$betweenness -
        get_closeness(.)$closeness
  )

# Get the graph's cache
graph %>%
  get_cache(name = "difference")

rich-iannone/DiagrammeR documentation built on July 5, 2025, 7:32 a.m.