feirfei
2008-08-12, 16:59
n=20;
time=70;
s=unifrnd(0,1,n,n);
s=round(s);
s(1:n,1:n)=0;
ran=1/4*rand(n);
ran1=rand(n);
ran2(1:n,1:n)=0.01;
t=1;
st{t}=s;
s;
s00=s;
for t=1:time
%r1=1./(1+exp(-k*t));
x1=random('norm',0.5,0.25,n,n);
r1=1./(1+exp(-x1));
p=random('norm',0.5,0.5,n,n);
r2=1./(1+exp(-p*t));
x3=0.5;
r3=1./(1+exp(x3));
sum12=0;
for i=1:n
for j=1:n
if st{t}(i,j)==1;
sum12=sum12+1;
else
sum12=sum12;
end
end
end
g=0.5;
x4=g*(sum12/(n*n));
r4=x4*(1-x4)+0.75;
x5=0.5;
r5=1./(1+exp(-x5));
for i=1:n
for j=1:n
s0=st{t};
s00=st{t};
R=r1*r2*r3*r4*r5(i,j);
if R(i,j)>ran(i,j)&ran1(i,j)>ran2(i,j);
st{t+1}(i,j)=1;
else
st{t+1}(i,j)=st{t}(i,j);
end
end
end
st{t+1};
end
for t=1:time
y1(t)=sum2(st{t},n);
end
y1
t=1:time;
plot(t,y1)
title('产业集群技术创新')
xlabel('模拟次数');ylabel('集群中进行技术创新的企业总数')
％------------------------------------------------------------
function y1=sum2(s,n)
y1=0;
for i=1:n;
for j=1:n
if s(i,j)==1
y1=y1+1;
end
end
end
在 matlab 6.5 运行 主程序的时候 出现??? Index exceeds matrix dimensions. 这个错误，
恳请大家帮我看看，多谢大家了
对上面的程序，我一步一步运行了，在下面这个循环中，运行到这个循环时出现了 ??? Index exceeds matrix dimensions.提示，但我还是不知道哪错了，也不知道怎么改，麻烦帮我看看好吗，多谢了 。我是初学 matlab,恳请指教
for i=1:n
for j=1:n
s0=st{t};
s00=st{t};
R=r1*r2*r3*r4*r5(i,j);
if R(i,j)>ran(i,j)&ran1(i,j)>ran2(i,j);
st{t+1}(i,j)=1;
else
st{t+1}(i,j)=st{t}(i,j);
end
end
end
st{t+1};
end
time=70;
s=unifrnd(0,1,n,n);
s=round(s);
s(1:n,1:n)=0;
ran=1/4*rand(n);
ran1=rand(n);
ran2(1:n,1:n)=0.01;
t=1;
st{t}=s;
s;
s00=s;
for t=1:time
%r1=1./(1+exp(-k*t));
x1=random('norm',0.5,0.25,n,n);
r1=1./(1+exp(-x1));
p=random('norm',0.5,0.5,n,n);
r2=1./(1+exp(-p*t));
x3=0.5;
r3=1./(1+exp(x3));
sum12=0;
for i=1:n
for j=1:n
if st{t}(i,j)==1;
sum12=sum12+1;
else
sum12=sum12;
end
end
end
g=0.5;
x4=g*(sum12/(n*n));
r4=x4*(1-x4)+0.75;
x5=0.5;
r5=1./(1+exp(-x5));
for i=1:n
for j=1:n
s0=st{t};
s00=st{t};
R=r1*r2*r3*r4*r5(i,j);
if R(i,j)>ran(i,j)&ran1(i,j)>ran2(i,j);
st{t+1}(i,j)=1;
else
st{t+1}(i,j)=st{t}(i,j);
end
end
end
st{t+1};
end
for t=1:time
y1(t)=sum2(st{t},n);
end
y1
t=1:time;
plot(t,y1)
title('产业集群技术创新')
xlabel('模拟次数');ylabel('集群中进行技术创新的企业总数')
％------------------------------------------------------------
function y1=sum2(s,n)
y1=0;
for i=1:n;
for j=1:n
if s(i,j)==1
y1=y1+1;
end
end
end
在 matlab 6.5 运行 主程序的时候 出现??? Index exceeds matrix dimensions. 这个错误，
恳请大家帮我看看，多谢大家了
对上面的程序，我一步一步运行了，在下面这个循环中，运行到这个循环时出现了 ??? Index exceeds matrix dimensions.提示，但我还是不知道哪错了，也不知道怎么改，麻烦帮我看看好吗，多谢了 。我是初学 matlab,恳请指教
for i=1:n
for j=1:n
s0=st{t};
s00=st{t};
R=r1*r2*r3*r4*r5(i,j);
if R(i,j)>ran(i,j)&ran1(i,j)>ran2(i,j);
st{t+1}(i,j)=1;
else
st{t+1}(i,j)=st{t}(i,j);
end
end
end
st{t+1};
end