From a graph object of class
dgr_graph, get a count of edges available in
a selection and cache that value in the graph for
later retrieval using get_cache.
Selections of edges can be performed using
the following select_... functions:
select_edges(),
select_last_edge(), or
select_edges_by_node_id().
Selections of edges can also be performed using
the following traversal functions:
trav_out_edge(), trav_in_edge(),
or trav_both_edge().
cache_edge_count_ws(graph)a graph object of class
dgr_graph.
a graph object of class dgr_graph.
# Create a graph with 5 nodes and 4 edges
graph <-
create_graph()
add_path(5)
# Cache a count of edges after creating a selection graph <- graph select_edges_by_node_id(2) cache_edge_count_ws()
# Get the number of edges stored in the cache graph #> [1] 4