Select an unknown variable from .Mat file

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Evans Gyan
Evans Gyan 2018-2-5
评论： Paul Richardson 2020-11-26
A .mat file has the variables
stateman
Name Size Bytes Class Attributes
val 1x1000 8000 double
Statefam
Name Size Bytes Class Attributes
statelab 1x16999 135992 double
ingrate 1x1 8 double
I want to automatically pick the variable with largest byte from a .mat file when selected by a user. Thank you guys

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Jan
Jan 2018-2-5
matObj = matfile('YourFile.mat');
details = whos(matObj);
[maxBytes, index] = max([details.bytes]);
maxName = details(index).name;
Now explain what "pick the variable" means. Do you want to import this variable?
data = matObj.(maxName);
% Or
data = load('YourFile.mat', maxName)

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