Function compute_lambda 

pub fn compute_lambda(strength: &StrengthGraph) -> Vec<f64>

Compute the measure of importance λ_i for each node.

λ_i = |{j : i strongly influences j}| + 0.5 * |{j : j strongly influences i, i ∈ F-set}|

In the initial phase (before F-set is known), returns: lambda_i = |strong_neighbors[i]| (number of nodes i influences)

Arguments

• strength - The strength graph

Returns

Vector of λ values indexed by node.