grinpy.invariants.disparity.closed_k_disparity¶

grinpy.invariants.disparity.closed_k_disparity(G, k)¶

Return the closed k-disparity of the graph.

The closed k-disparity of a graph is defined as:

\[\frac{2}{k(k+1)}\sum_{i=0}^{k-1}(k-i)d_i\]

where k is a positive integer and d_i is the i-th element in the closed disparity sequence, ordered in weakly decreasing order.

Parameters:	G (NetworkX graph) – An undirected graph.
Returns:	The closed k-disparity of the graph.
Return type:	float