www.pudn.com > vrp-ga.rar > jiaocha.m, change:2009-05-30,size:1330b


%OX顺序交叉策略 
P1=Parent(i,:); 
P2=Parent(j,:); 
 
%选择切点,交换中间部分 并且 修复基因 
X=floor(rand*28)+2; 
Y=floor(rand*28)+2; 
if X<Y 
    change1=P1(X:Y); 
    change2=P2(X:Y); 
    %P1(X:Y)=change2; 
    %P2(X:Y)=change1; 
    %开始修复 Order Crossover 
    %1.列出基因  
    p1=[P1(Y+1:end),P1(1:X-1),change1]; 
    p2=[P2(Y+1:end),P2(1:X-1),change2]; 
    %2.1删除已由基因 P1 
    for i=1:length(change2) 
        p1(find(p1==change2(i)))=[]; 
    end 
    %2.2删除已由基因 P2 
    for i=1:length(change1) 
        p2(find(p2==change1(i)))=[]; 
    end 
    %3.1修复 P1 
    P1=[p1(30-Y+1:end),change2,p1(1:30-Y)]; 
    %3.1修复 P2 
    P2=[p2(30-Y+1:end),change1,p2(1:30-Y)]; 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%     
else 
    change1=P1(Y:X); 
    change2=P2(Y:X); 
    %P1(Y:X)=change2; 
    %P2(Y:X)=change1; 
    %开始修复 Order Crossover 
    %1.列出基因  
    p1=[P1(X+1:end),P1(1:Y-1),change1]; 
    p2=[P2(X+1:end),P2(1:Y-1),change2]; 
    %2.1删除已由基因 P1 
    for i=1:length(change2) 
        p1(find(p1==change2(i)))=[]; 
    end 
    %2.2删除已由基因 P2 
    for i=1:length(change1) 
        p2(find(p2==change1(i)))=[]; 
    end 
    %3.1修复 P1 
    P1=[p1(30-X+1:end),change2,p1(1:30-X)]; 
    %3.1修复 P2 
    P2=[p2(30-X+1:end),change1,p2(1:30-X)]; 
end 
%加入子代 
children=[children;P1;P2];