deposit_node_count_in_selection: Deposit a count of nodes (available in a selection) in the graph
Description
From a graph object of class dgr_graph, get a
count of nodes available in a selection and deposit that value in
the graph for later retrieval using withdraw_values
Usage
deposit_node_count_in_selection(graph)
Arguments
graph
a graph object of class dgr_graph that is created
using create_graph.