Get a single, aggregate value from the outdegree values for all nodes in a graph, or, a subset of graph nodes.

get_agg_degree_out(graph, agg, conditions = NULL)

Arguments

graph

a graph object of class dgr_graph.

agg

the aggregation function to use for summarizing outdegree values from graph nodes. The following aggregation functions can be used: sum, min, max, mean, or median.

conditions

an option to use filtering conditions for the nodes to consider.

Value

a vector with an aggregate outdegree value.

Examples

# Create a random graph using the # `add_gnm_graph()` function graph <- create_graph() %>% add_gnm_graph( n = 20, m = 35, set_seed = 23) %>% set_node_attrs( node_attr = value, values = rnorm( n = count_nodes(.), mean = 5, sd = 1) %>% round(1)) # Get the mean outdegree value from all # nodes in the graph graph %>% get_agg_degree_out( agg = "mean")
#> [1] 1.75
# Other aggregation functions can be used # (`min`, `max`, `median`, `sum`); let's # get the median in this example graph %>% get_agg_degree_out( agg = "median")
#> [1] 1
# The aggregation of outdegree can occur # for a subset of the graph nodes and this # is made possible by specifying `conditions` # for the nodes graph %>% get_agg_degree_out( agg = "mean", conditions = value < 5.0)
#> [1] 2.555556