# networkx.algorithms.triads.triadic_census¶

triadic_census(G)[source]

Determines the triadic census of a directed graph.

The triadic census is a count of how many of the 16 possible types of triads are present in a directed graph.

Parameters

G (digraph) – A NetworkX DiGraph

Returns

census – Dictionary with triad type as keys and number of occurrences as values.

Return type

dict

Notes

This algorithm has complexity $$O(m)$$ where $$m$$ is the number of edges in the graph.

See also

triad_graph()

References

1

Vladimir Batagelj and Andrej Mrvar, A subquadratic triad census algorithm for large sparse networks with small maximum degree, University of Ljubljana, http://vlado.fmf.uni-lj.si/pub/networks/doc/triads/triads.pdf