[Retracted] Dynamic Early Warning Method of Multiclassification Financial Crisis of Listed Companies Based on Particle Swarm Optimization

Code 1

Public void particle swarm optimization (TextBox textbox, panel p, int n).

{

List<List<double>> w = new List<List<double>>();

  Random r = new Random();

  u= new List<double>();

  For (int i =0; i < n; i++) {

  double t = r.NextDouble() -0.5;

w.Add(new List<double>() {-2 t, -3 t, r.Next(1000)

t}); }

double z =0.18;

  double step =0.2;

  List<double> f = new List<double>();

  L = new List<List<double>>();

  G = new List<double>();

  l = new List<double>();

  g =20;

  …

  for (int i =0; i < w.Count; i++){

  w[i] = Particle swarm iterates over a particle(w[i], G, L[i],

step);

f[i] = Seeking fitness(w[i], w[i], w[i]); }

  j = test(f, z);

  draw(textbox, p, x, w, j);

  Thread.Sleep(50);

  count++;

}

}