grinpy.invariants.disparity.k_disparity¶
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grinpy.invariants.disparity.
k_disparity
(G, k)¶ Return the k-disparity of the graph.
The k-disparity of a graph is defined as:
\[\frac{2}{k(k+1)}\sum_{i=0}^{k-i}(k-i)d_i\]where k is a positive integer and d_i is the i-th element in the disparity sequence, ordered in weakly decreasing order.
Parameters: G (NetworkX graph) – An undirected graph. Returns: The k-disparity of the graph. Return type: float See also