DiagrammeR (version 1.0.0)

copy_node_attrs: Copy a node attribute column and set the name

Description

Within a graph's internal node data frame (ndf), copy the contents an existing node attribute and create a distinct node attribute within the ndf with a different attribute name.

Usage

copy_node_attrs(graph, node_attr_from, node_attr_to)

Arguments

graph

a graph object of class dgr_graph.

node_attr_from

the name of the node attribute column from which values will be copied.

node_attr_to

the name of the new node attribute column to which the copied values will be placed.

Value

a graph object of class dgr_graph.

Examples

# NOT RUN {
# Create a random graph using the
# `add_gnm_graph()` function
graph <-
  create_graph() %>%
  add_gnm_graph(
    n = 5,
    m = 10,
    set_seed = 23) %>%
  set_node_attrs(
    node_attr = shape,
    values = "circle") %>%
  set_node_attrs(
    node_attr = value,
    values = rnorm(
      n = count_nodes(.),
      mean = 5,
      sd = 1) %>% round(1))

# Get the graph's internal
# ndf to show which node
# attributes are available
graph %>%
  get_node_df()

# Make a copy the `value`
# node attribute as the
# `width` node attribute
graph <-
  graph %>%
  copy_node_attrs(
    node_attr_from = value,
    node_attr_to = size)

# Get the graph's internal
# ndf to show that the node
# attribute had been copied
graph %>%
  get_node_df()
# }

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