一个 nxn 相关矩阵 M 和一个向量 L 长度 n 包含每个垃圾箱的标签，您可以使用类似以下的内容：

If you have an n x n correlation matrix M, and a vector L of length n containing the label for each bin, you can use something like the following:

imagesc(M); % plot the matrix
set(gca, 'XTick', 1:n); % center x-axis ticks on bins
set(gca, 'YTick', 1:n); % center y-axis ticks on bins
set(gca, 'XTickLabel', L); % set x-axis labels
set(gca, 'YTickLabel', L); % set y-axis labels
title('Your Title Here', 'FontSize', 14); % set title
colormap('jet'); % set the colorscheme
colorbar on; % enable colorbar

旋转的x轴标签并不重要，但MATLAB Central File Exchange包含一些解决方案。

Rotating x-axis labels is not trivial, but the MATLAB Central File Exchange contains some solutions.