# dynetx.classes.function.number_of_interactions¶

dynetx.classes.function.number_of_interactions(G, u=None, v=None, t=None)

Return the number of edges between two nodes at time t.

Parameters: G (a dynetx graph object) – u (node, optional (default=all edges)) – v (node, optional (default=all edges)) – t (snapshot id (default=None)) – If None will be returned the number of edges on the flattened graph. u and v are specified, return the number of edges between u and v. (If) – return the total number of all edges. (Otherwise) – nedges – The number of edges in the graph. If nodes u and v are specified return the number of edges between those nodes. int

Examples

>>> import dynetx as dn
>>> G = dn.DynGraph()
>>> G.add_path([0,1,2,3], t=0)
>>> dn.number_of_interactions(G, t=0)