Matlab错误矩阵尺寸必须一致答案

【问题标题】：Matlab error Matrix dimensions must agreeMatlab错误矩阵尺寸必须一致
【发布时间】：2016-02-25 22:25:36
【问题描述】：

在处理以下代码时，我得到 Matrix 错误必须同意错误。 E(m+1)=z/w;工作区虽然清楚地表明 z 和 w 的尺寸是相同的，1001x1001。

   l=[0:10000];
n=[0:1000];
g=1;
a=-0.5;
b=0.9;
for m=l
    xl=cos(2*pi*m*n/10000)';
    yl=ex22_1(xl,g,a,b);
    %multiplication of matrix with its transpose resolves SUMn(yl[n])^2
    z=yl*yl';
    w=xl*xl';
    E(m+1)=z/w;
end
printf(gcf,'-depsc2',['lti_crazy_function.eps']);
createFigure;
plot(1,10*log10(e),'.');
xlabel('Frequency (Hz)');
ylabel('Magnitude (dB)');
grid on;

任何帮助将不胜感激，谢谢！

【问题讨论】：

标签： matlab matrix dimensions mismatch

【解决方案1】：

您可以通过将它们存储在 3D 矩阵中来创建“矩阵数组”：

E = zeros(1001,1001,l);  %% using the number of loops as the last dimension
for m=1:l  %% Note: your for loop above only does one iteration; this makes it do `l` iterations (the letter L)
    xl=cos(2*pi*m*n/10000)';
    yl=ex22_1(xl,g,a,b);
    %multiplication of matrix with its transpose resolves SUMn(yl[n])^2
    z=yl*yl';
    w=xl*xl';
    E(:,:,m)=z/w;
end

【讨论】：