DiagrammeR (version 0.9.2)

create_complement_graph: Create a complement of a graph

Description

Create a complement graph which contains only edges not present in the input graph.

Usage

create_complement_graph(graph, loops = FALSE)

Arguments

graph

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

loops

an option for whether loops should be generated in the complement graph.

Value

a graph object of class dgr_graph.

Examples

# NOT RUN {
# Create a simple graph with a single cycle
graph <-
  create_graph() %>%
  add_cycle(n = 4)

# Get the graph's edge data frame
graph %>%
  get_edge_df()
#>   id from to  rel
#> 1  1    1  2 <NA>
#> 2  2    2  3 <NA>
#> 3  3    3  4 <NA>
#> 4  4    4  1 <NA>

# Create the complement of the graph
graph_c <- create_complement_graph(graph)

# Get the edge data frame for the
# complement graph
graph_c %>%
  get_edge_df()
#>   id from to  rel
#> 1  1    1  4 <NA>
#> 2  2    1  3 <NA>
#> 3  3    2  4 <NA>
#> 4  4    2  1 <NA>
#> 5  5    3  2 <NA>
#> 6  6    3  1 <NA>
#> 7  7    4  3 <NA>
#> 8  8    4  2 <NA>
# }