mutation.cs

c#编写

using System;
using System.Collections.Generic;
using System.Text;

namespace GA_RPS.GAKernel
{
    class Mutation
    {
        public Population[] mutateOp(Population[] p)
        {
            Roulette r = new Roulette();
            int mutNum = (int)((double)GAControl.POP_NUM * (double)GAControl.POP_SIZE * GAControl.MUT_RATIO);
            r.resetBallot(GAControl.POP_NUM * GAControl.POP_SIZE);
            for (int i = 0; i < mutNum; i++)
            {
                int mutPoint = r.lot() + 1;
                int mutPop = mutPoint / GAControl.POP_SIZE;             // the population where mutation point located
                int mutPos = mutPoint - mutPop * GAControl.POP_SIZE;    // the position of the mutation point in the population
                if (mutPos == 0) mutPop--;
                else mutPos--;
                //System.Windows.Forms.MessageBox.Show(Convert.ToString(mutPoint), "Mutate Point");
                //System.Windows.Forms.MessageBox.Show(Convert.ToString(mutPop), "Mutate Population");
                //System.Windows.Forms.MessageBox.Show(Convert.ToString(mutPos), "Mutate Position");
                r.resetBallot(3);
                p[mutPop].GaArray[mutPos] = r.ranRPS(p[mutPop].GaArray[mutPos]);
            }
            return p;
        }
    }
}