Question

MATLAB程序出错！急求大神解决！！

clc
clear
load xingbo.mat;
m=n';
ua=m(3501:3900,2)-m(1501:1900,2);
ia=m(3501:3900,5)-m(1501:1900,5);
ub=m(3501:3900,3)-m(1501:1900,3);
ib=m(3501:3900,6)-m(1501:1900,6);
uc=m(3501:3900,4)-m(1501:1900,4);
ic=m(3501:3900,7)-m(1501:1900,7);
Q=1/3*[2 -1 -1
0 sqrt(3) -sqrt(3)
1 1 1];
um1=Q(1,:)*[ua ub uc]';
im1=Q(1,:)*[ia ib ic]';
Lm1=0.8984e-3;
Cm1=12.94e-9;
Zcm1=sqrt(Lm1/Cm1);
uf=(um1+im1*Zcm1);
ur=(um1-im1*Zcm1);
uf1=uf';
ur1=ur';
t1=0:10:3990;
t=t1';
plot(t,uf1,'r',t,ur1,'b--');
xlabel('t/us');ylabel('u/V');
legend('正向行波','反向行波','location','northwest');%Legend位置在左上角西北方

错误显示：
??? Index exceeds matrix dimensions.

Error in ==> xingbotiqu at 10
ua=m(3501:3900,2)-m(1501:1900,2);

急求解决方法！

Answer 1

你的xingbo.mat文件里存储的数据至少得有3900*7这么大，你查一下。