mixing_expansion#
- mixing_expansion(G, S, T=None, weight=None)[source]#
Returns the mixing expansion between two node sets.
The mixing expansion is the quotient of the cut size and twice the number of edges in the graph. [1]
- Parameters:
- GNetworkX graph
- Scollection
A collection of nodes in
G
.- Tcollection
A collection of nodes in
G
.- weightobject
Edge attribute key to use as weight. If not specified, edges have weight one.
- Returns:
- number
The mixing expansion between the two sets
S
andT
.
References
[1]Vadhan, Salil P. “Pseudorandomness.” Foundations and Trends in Theoretical Computer Science 7.1–3 (2011): 1–336. <https://doi.org/10.1561/0400000010>