看看这段matlab哪里错了,提示如下,我做的是灰色预测Error using ==> vertcatCAT arguments dimensions are not consistent.Error in ==> Changjiang at 11E=[-C;ones(1,n-1)];原代码syms a b;c=[a b]';A=[158.626,171.636,202.812,218.826];B=cu
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![看看这段matlab哪里错了,提示如下,我做的是灰色预测Error using ==> vertcatCAT arguments dimensions are not consistent.Error in ==> Changjiang at 11E=[-C;ones(1,n-1)];原代码syms a b;c=[a b]';A=[158.626,171.636,202.812,218.826];B=cu](/uploads/image/z/15246996-60-6.jpg?t=%E7%9C%8B%E7%9C%8B%E8%BF%99%E6%AE%B5matlab%E5%93%AA%E9%87%8C%E9%94%99%E4%BA%86%2C%E6%8F%90%E7%A4%BA%E5%A6%82%E4%B8%8B%2C%E6%88%91%E5%81%9A%E7%9A%84%E6%98%AF%E7%81%B0%E8%89%B2%E9%A2%84%E6%B5%8BError+using+%3D%3D%3E+vertcatCAT+arguments+dimensions+are+not+consistent.Error+in+%3D%3D%3E+Changjiang+at+11E%3D%5B-C%3Bones%281%2Cn-1%29%5D%3B%E5%8E%9F%E4%BB%A3%E7%A0%81syms+a+b%3Bc%3D%5Ba+b%5D%27%3BA%3D%5B158.626%2C171.636%2C202.812%2C218.826%5D%3BB%3Dcu)
看看这段matlab哪里错了,提示如下,我做的是灰色预测Error using ==> vertcatCAT arguments dimensions are not consistent.Error in ==> Changjiang at 11E=[-C;ones(1,n-1)];原代码syms a b;c=[a b]';A=[158.626,171.636,202.812,218.826];B=cu
看看这段matlab哪里错了,提示如下,我做的是灰色预测
Error using ==> vertcat
CAT arguments dimensions are not consistent.
Error in ==> Changjiang at 11
E=[-C;ones(1,n-1)];
原代码
syms a b;
c=[a b]';
A=[158.626,171.636,202.812,218.826];
B=cumsum(A);
n=length(A);
for i=1:(n-1)
C(i)=(B(i)+B(i+1))/2;
end
D=A;D(1)=[];
D=D';
E=[-C;ones(1,n-1)];
c=inv(E*E')*E*D;
c=c';
a=c(1);b=c(2);
F=[];F(1)=A(1);
for i=2:(n+17)
F(i)=(A(1)-b/a)/exp(a*(i-1))+b/a;
end
G=[];G(1)=A(1);
for i=2:(n+17)
G(i)=F(i)-F(i-1);
end
t1=2000:2003;
t2=2000:2020;
G,a,b
plot(t1,A,'o',t2,G)
看看这段matlab哪里错了,提示如下,我做的是灰色预测Error using ==> vertcatCAT arguments dimensions are not consistent.Error in ==> Changjiang at 11E=[-C;ones(1,n-1)];原代码syms a b;c=[a b]';A=[158.626,171.636,202.812,218.826];B=cu
在我电脑上运行正常,2010a版本.