DiagrammeR (version 0.8.1)

invert_selection: Invert selection of nodes or edges in a graph

Description

Modify the selection of nodes or edges within a graph object such that all nodes or edges previously unselected will now be selected and vice versa.

Usage

invert_selection(graph)

Arguments

graph

a graph object of class dgr_graph that is created using create_graph.

Value

• a graph object of class dgr_graph.

Examples

# Create a simple graph
nodes <-
  create_nodes(nodes = c("a", "b", "c", "d"),
               type = "letter",
               label = TRUE,
               value = c(3.5, 2.6, 9.4, 2.7))

edges <-
  create_edges(from = c("a", "b", "c"),
               to = c("d", "c", "a"),
               rel = "leading_to")

graph <-
  create_graph(nodes_df = nodes,
               edges_df = edges)

# Select nodes "a" and "c"
graph <- select_nodes(graph = graph, nodes = c("a", "c"))

# Verify that a node selection has been made
get_selection(graph)
#> $nodes
#> [1] "a" "c"

# Invert the selection
graph <- invert_selection(graph = graph)

# Verify that the node selection has been changed
get_selection(graph)
#> $nodes
#> [1] "b" "d"