DiagrammeR (version 0.9.2)

get_coreness: Get coreness values for graph nodes

Description

Get the coreness values for all nodes in a graph.

Usage

get_coreness(graph, direction = "all")

Arguments

graph

a graph object of class dgr_graph.

direction

using all (the default), the search will ignore edge direction while traversing through the graph. With out, measurements of paths will be from a node whereas with in, measurements of paths will be to a node.

Value

a data frame with coreness values for each of the nodes.

Examples

# NOT RUN {
# Create a random graph
graph <-
  create_random_graph(
    n = 10, m = 22,
    set_seed = 23)

# Get coreness values for all nodes
# in the graph
get_coreness(graph)
#>    id coreness
#> 1   1        3
#> 2   2        3
#> 3   3        3
#> 4   4        3
#> 5   5        3
#> 6   6        3
#> 7   7        3
#> 8   8        2
#> 9   9        3
#> 10 10        3

# Add the coreness values to the graph
# as a node attribute
graph <-
  graph %>%
  join_node_attrs(
    df = get_coreness(.))

# Display the graph's node data frame
get_node_df(graph)
#>    id type label value coreness
#> 1   1 <NA>     1   6.0        3
#> 2   2 <NA>     2   2.5        3
#> 3   3 <NA>     3   3.5        3
#> 4   4 <NA>     4   7.5        3
#> 5   5 <NA>     5   8.5        3
#> 6   6 <NA>     6   4.5        3
#> 7   7 <NA>     7  10.0        3
#> 8   8 <NA>     8  10.0        2
#> 9   9 <NA>     9   8.5        3
#> 10 10 <NA>    10  10.0        3
# }