計算機(jī)課件旅行商 lingo運(yùn)算

function[pop]cross(pop)

[s,t]size(pop);

data;%取城市位置數(shù)據(jù)

distma二dists(mm,mm);先生成距離表

popl=pop;%保存原群體矩陣

m二zeros(1,31);%初始化交叉后第一個個體

n=zeros(1,31);%初始化交叉后第二個個體

fori=1:2:S%每兩行進(jìn)行交叉操作

xl=pop(i,:);%取出要交叉的兩行進(jìn)行右交叉

yl=pop(i+1,：);

x2=pop(i,;%取出要交叉的兩行進(jìn)行左交叉

y2=pop(i+1,:);

cl=round(rand329);%隨機(jī)產(chǎn)生交叉起點

c2=cl;m⑴=cl;n⑴=c2;j=2;

whilesize(xl,2)>2%交叉結(jié)束的條件

1=find(xl==cl);h=find(x2==c2);

if1==32-j%若為最后一個城市，則右城市為第一個城市

lr=1;

else

lr=1+1;%其他情況直接加--

end

ifh==1%若為第?個城市，則左城市為最后一個城市

hl=32-j;

else

hl=h-1;

end

q=find(yl==cl);z=find(y2==c2);

ifq==32-j%找出第二個父代的右城市

qr=1;

else

qr=q+1;

end

ifz==1%找出第二個父代的左城市

zl=32-j;

else

zl=z-1;

end

if

distma(cl+1,xl(lr)+1)<distma(cl+1,

yl(qr)+1)%比較兩父代交叉點與右城市的距離，取距離小的城市為廣代的下一個點

m(j)=xl(lr);cl=xl(lr);

else

m(j)=yl(qr);cl=yl(qr);

m(j)=yl(qr)；cl=yl(qr);

end

xl(1)=[]；為刪除父代中已經(jīng)選中的點

yl(q)=[]；

if

distma(c2+1,x2(hl)+l)<distma(c2+1,

y2(zl)+1)%比較兩父代交叉點與左城市的距離，取距離小的城市作為第二子代的下一點

n(j)=x2(h1);c2=x2(h1);

else

n(j)=y2(zl);c2=y2(zl);

end

x2(h)=[];%刪除父代中已經(jīng)選中的點

y2(z)=[]；

j=j+1;

end

popl(i,：)=m;%得到交叉后的群體矩陣

popl(i+1,:)=n;

end

popl=qiujuli(popl);%求出交叉種群中個體的適應(yīng)值

fori=l:s%逐行比較，保留適應(yīng)值較小的個體

ifpopl(i,t)<pop(i,t)

pop(i,:)=popl(i,:);

end

end

Globaloptimalsolutionfound.

Objectivevalue:1777.000

Objectivebound:1777.000

Infeasibilities:0.000000

Extendedsolversteps:273

Totalsolveriterations:20191

VariableValue

N30.00000

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U(3)21.00000

U(4)20.00000

U(5)16.00000

U(6)9.000000

U(7)17.00000

U(8)26.00000

U(9)23.00000

U(10)24.00000

U(11)27.00000

U(12)12.00000

U(13)4.000000

U(14)13.00000

U(15)8.000000

U(16)18.00000

U(17)19.00000

U(18)3.000000

U(19)14.00000

U(20)22.00000

U(21)10.00000

U(22)11.00000

U(23)28.00000

U(24)2.000000

U(25)5.000000

U(26)7.000000

U(27)1.000000

U(28)6.000000

U(29)29.00000

U(30)25.00000

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DIST(1,9)100.0000

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DIST(1,11)174.0000

DIST(1,12)100000.0

DIST(1,13)165.0000

DIST(1,14)208.0000

DIST(1,15)100000.0

DIST(1,16)179.0000

DIST(1,17)355.0000

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DIST(2,18)271.0000

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DIST(2,30)83.00000

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DIST(19,17)100000.0

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DIST(21,9)150.0000

DIST(21,10)120.0000

DIST(21,11)194.0000

DIST(21,12)65.00000

DIS