DiagrammeR (version 0.9.2)

get_degree_in: Get indegree values for all nodes

Description

Get the indegree values for all nodes in a graph.

Usage

get_degree_in(graph, normalized = FALSE)

Arguments

graph

a graph object of class dgr_graph.

normalized

set as FALSE (the default), the indegree will be provided for each of the nodes (as a count of edges to each node). When set as TRUE, then the result for each node will be divided by the total number of nodes in the graph minus 1.

Value

a data frame with indegree 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 the indegree values for all nodes
# in the graph
get_degree_in(graph)
#>    id indegree
#> 1   1        0
#> 2   2        0
#> 3   3        1
#> 4   4        0
#> 5   5        3
#> 6   6        4
#> 7   7        3
#> 8   8        2
#> 9   9        4
#> 10 10        5

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

# Display the graph's node data frame
get_node_df(graph)
#>    id type label value indegree
#> 1   1 <NA>     1   6.0        0
#> 2   2 <NA>     2   2.5        0
#> 3   3 <NA>     3   3.5        1
#> 4   4 <NA>     4   7.5        0
#> 5   5 <NA>     5   8.5        3
#> 6   6 <NA>     6   4.5        4
#> 7   7 <NA>     7  10.0        3
#> 8   8 <NA>     8  10.0        2
#> 9   9 <NA>     9   8.5        4
#> 10 10 <NA>    10  10.0        5
# }

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