Functional interface to graph methods and assorted utilities.
| density(G) | Return the density of a graph. |
| info(G[, n, output_to_file]) | Print short summary of information for graph G or node n. |
| degree_histogram(G) | Return a list of the frequency of each degree value. |
| freeze(G) | Modify graph to prevent addition of nodes or edges. |
| is_frozen(G) | Return True if graph is frozen. |
| create_empty_copy(G[, with_nodes]) | Return a copy of the graph G with all of the edges removed. |