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Note

This documents the development version of NetworkX. Documentation for the current release can be found here.

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networkx.algorithms.triads.triadic_census

triadic_census(G)

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