trophic_levels#
- trophic_levels(G, weight='weight')[source]#
Compute the trophic levels of nodes.
The trophic level of a node
iswhere
is the in-degree of iand nodes with
have by convention.These are calculated using the method outlined in Levine [1].
- Parameters:
- GDiGraph
A directed networkx graph
- Returns:
- nodesdict
Dictionary of nodes with trophic level as the value.
References
[1]Stephen Levine (1980) J. theor. Biol. 83, 195-207