# Get an aggregate value from the outdegree of nodes

Source:`R/get_agg_degree_out.R`

`get_agg_degree_out.Rd`

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

## 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.

## 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
```