# Get an aggregate value from the total degree of nodes

Source:`R/get_agg_degree_total.R`

`get_agg_degree_total.Rd`

Get a single, aggregate value from the total degree 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 total degree 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 total degree
# value from all nodes in
# the graph
graph %>%
get_agg_degree_total(
agg = "mean")
#> [1] 3.5
# Other aggregation functions
# can be used (`min`, `max`,
# `median`, `sum`); let's get
# the median in this example
graph %>%
get_agg_degree_total(
agg = "median")
#> [1] 3
# The aggregation of total
# degree can occur for a
# subset of the graph nodes
# and this is made possible
# by specifying `conditions`
# for the nodes
graph %>%
get_agg_degree_total(
agg = "mean",
conditions = value < 5.0)
#> [1] 4.666667
```