matlab - 从 matlab 中的 .mat 文件中读取特定列

Question

我想加载工作空间中已经存在的特定列格式.mat文件，加载后我应该怎么写呢？

Answer 1

You can access part of a variable saved in a MAT file using MATFILE constructor (available since R2011b). Check my answer to another similar question.

For example, if you have matrix a saved in matlab.mat file you constract the matfile object as

matObj = matfile('matlab.mat');

Then you can access 2nd column like x = matObj.a(:,2);.