mutation.asv

#include "stdio.h" #include "math.h" #include "malloc.h" #include "string.h" #define m 6 #defin

function ret=Mutation(pmutation,chrom,sizepop,pop,bound)
%变异函数
        for i=1:sizepop
               % 随即选择变异个体
                pick=rand;
%               while pick==0
%                    pick=rand;
%               end
                index=ceil(pick*sizepop);
                pick=rand;
                if pick>pmutation
                   continue;
                end
                % 随即产生变异位置
                pick=rand;
%               while pick==0
%                    pick=rand;
%               end
                pos=ceil(pick*7);
                v=chrom(i,pos);
                v1=v-bound(pos,1);
                v2=bound(pos,2)-v;
                pick=rand;
                if pick>0.5
                    delta=v2*(1-pick^((1-pop(1)/pop(2))^2));%???
                    chrom(i,pos)=v+delta;
                else
                    delta=v1*(1-pick^((1-pop(1)/pop(2))^2));
                    chrom(i,pos)=v-delta;
                end
        end
        ret=chrom;