Complexity Index of an Undirected Graph

globals
 [
 bingo
 tom
 ]

to setup
  clear-all
  set-default-shape turtles "circle"
  create-turtles number-of-nodes [
    set color blue
    set size 2
  ]
  layout-circle turtles (world-width / 2 - 2)
  set tom (number-of-nodes * (number-of-nodes - 1)) / 2
  show tom

  reset-ticks
end 

;; This procedure demos the creation and deletion of edges.
;; Here we create and delete edges at random, except that
;; we try to keep the total number of links constant.

to go
  if not any? turtles [ stop ]
  ask one-of turtles
    [ create-link-with one-of other turtles ]  ;; if link already exists, nothing happens
  while [count links > number-of-links]
    [ ask one-of links [ die ] ]
  set bingo count links
  tick
end 


; Public Domain:
; To the extent possible under law, Uri Wilensky has waived all
; copyright and related or neighboring rights to this model.