mutate.m

来自「多智能体工具包」· M 代码 · 共 31 行

function chrom=mutate(chrom,mu)
% MUTATE	Mutate chromosomes at the given rate.

%     Copyright (c) 1998-2000 Jiming Liu and Jianbing Wu

[pop bitlength]=size(chrom);
for i=1:pop
  IsLegal=0;
  Loop=0;
  while ~IsLegal
    muchrom=chrom(i,:);
    for j=1:bitlength
      if rand<=mu
        if muchrom(j)==1
          muchrom(j)=0;
        else
          muchrom(j)=1;
        end
      end
    end
    IsLegal=forlegal(muchrom);

    Loop=Loop+1;           % avoid deadlock.
    if Loop>200
      break;
    end

  end
  chrom(i,:)=muchrom;
end