# Get the number of mutually-connected node pairs

Source:`R/count_mutual_node_pairs.R`

`count_mutual_node_pairs.Rd`

Get the number of mutually-connected node pairs. This works for directed graphs.

## Examples

```
# Create a cycle graph
graph <-
create_graph() %>%
add_cycle(n = 5)
# Get a count of mutually-connected
# node pairs
graph %>% count_mutual_node_pairs()
#> [1] 0
# Create a full graph and then
# count the mutually-connected
# node pairs
create_graph() %>%
add_full_graph(n = 10) %>%
count_mutual_node_pairs()
#> [1] 45
```