emigrant_chao.asv

基于粒子群优化与灰色系统理论的多目标优化程序

function  x=emigrant_chao(us,ux,n,k)
%馄饨移民算子。
%us,ux分别为设计变量上下限数组，采用Logistic馄饨模型。
 %+++++++++++++++++for  debug this file++++++++++++++++++++++++
 %chaoV=0;n=5;k=30;
 %ux=[78,33,27,27,27]; us=[102,45,45,45,45];  
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 global chaoV chaoV1;   
 if chaoV==0
     ht=zeros(1,n);
     for i=1:n
        ht(1,i)=unifrnd(0,1);  %随机生成初始馄饨变量行向量。
     end
  else
     ht(1,:)=chaoV1;
     chaoV=chaoV+1;
  end
        %+++++++++++++++++++++++++++++++++++++++++
 for j=1:n    %生成馄饨变量矩阵femigx的第一行。
      femigx(1,j)=4*ht(1,j)*(1-ht(1,j));
 end
 for  i=2:k  %完成混沌变量矩阵。
     for  j=1:n
        femigx(i,j)=4*femigx(i-1,j)*(1-femigx(i-1,j));
     end
 end
 chaoV1=femigx(k,:)
 femigx=2/pi*asin(femigx.^0.5);%均匀概率转换
        %+++++++++++++++++++++++++++++++++++++++++
 for  i=1:k    %把混沌变量矩阵变成设计变量矩阵semigx。
     for j=1:n
         semigx(i,j)=ux(j)+(us(j)-ux(j))*femigx(i,j);
     end
 end
 x=semigx(k,:);
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%