Function closeness_centralization 

pub fn closeness_centralization(graph: &Graph) -> IgraphResult<f64>

Compute closeness centralization.

sum(max_cc - cc[v]) / ((n-2)*(n-1)/(2*n-3)) — Freeman closeness centralization. Returns 0.0 for disconnected or trivial graphs.

Examples

use rust_igraph::{Graph, closeness_centralization};

// K_3: all closeness = 1.0 → centralization = 0
let g = Graph::from_edges(&[(0,1),(1,2),(0,2)], false, Some(3)).unwrap();
assert!(closeness_centralization(&g).unwrap().abs() < 1e-10);