?? mprpswp1.m
字號(hào):
function [Ntotle2,NNN,number2]=MPRPSWP(y)
%for i=1:30
if y==2
number2=0;
NNN=0;
Ntotle2=1;
for NO=1:49
[nprob,n,m,x0]=init(NO);
ee=1e-5;
ee2=1e-12;
gk=grdfcn(n,m,x0,nprob);
dk=(-1)*gk;
p=0.01;
b=0.1;
K=0;
NI=0;
a=[norm(gk)]^(-1);
q=norm(gk);
NGG=1;
NFF=1;
while (q>=ee)&(K+NI<60000)
if NI==0
a=a;
else
a=a*(gk11'*dk0)/(gk1'*dk);
end
a1=0;
a2=100;
sk=a*dk;
x1=x0+sk;
f0=objfcn(n,m,x0,nprob);
f1=objfcn(n,m,x1,nprob);
gk1=grdfcn(n,m,x1,nprob);
j=0;
M=0;
ff0=gk'*dk;
while (j==0)&(M<50)
if (f1<=f0+p*a*gk'*dk)
gk1=grdfcn(n,m,x1,nprob);
ff1=gk1'*dk;
NGG=NGG+1;
if (ff1>=b*gk'*dk)&(ff1<=-b*gk'*dk)
j=-1;
else
aa=a+(a-a1)*gk1'*dk/((gk'-gk1')*dk);
a1=a;
f0=f1;
ff0=ff1;
a=aa;
end
else
tt=(f0-f1)/((a-a1)*ff0);
aa=a1+0.5*(a-a1)/(1+tt);
a2=a;
a=aa;
end
x1=x0+a*dk;
f1=objfcn(n,m,x1,nprob);
gk1=grdfcn(n,m,x1,nprob);
K=K+1;
M=M+1;
NFF=NFF+1;
end
gk11=grdfcn(n,m,x0,nprob);
sk=x1-x0;
x0=x1;
f1=objfcn(n,m,x1,nprob);
gk=grdfcn(n,m,x1,nprob);
yk=gk-gk11;
myk=yk+[(2*(f0-f1)+(gk+gk11)'*sk)/norm(sk)^2]*sk;
%betak=(gk'*gk)/(myk'*dk); % DY
%betak=-(gk'*myk)/(dk'*gk11); % LS
%betak=(gk'*myk)/(myk'*dk); % HS
betak=(gk'*myk)/(norm(gk11)^2); % PRP
%betak=(gk'*myk-gk'*sk)/(dk'*myk);% LI GUOYIN
%betak=[gk'*(gk+((2*(f0-f1)+(gk+gk11)'*sk)/norm(sk)^2)*sk)]/[norm(gk11)^2];
dk0=dk;
NI=NI+1;
q=norm(gk1);
dk=(-1)*gk+betak*dk0;
if (gk1'*dk>ee2)
dk1=-gk1;
x1=x0+a*(-gk1);
gk1=grdfcn(n,m,x1,nprob);
end
end
if (q<=ee)
Totle2=NFF+NGG*5;
NNN=max(Totle2,NNN);
else
Totle2=1;
number2=number2+1;
end
Ntotle2=Totle2*Ntotle2;
diary 000002.m
sprintf('%d %d %d %d/%d/%d %d',nprob,n,m,NI,NFF,NGG,Totle2)
diary off
end
else
Ntotle=0;
NNN=0;
number=0;
end
?? 快捷鍵說明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -