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How to import multiple .m files

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liu James
liu James on 9 Dec 2016
Edited: Stephen23 on 10 Dec 2016
Is there a simple loop or so to call multiple files and extract the sub structures from it where all .m files have the same substructure?
  1 Comment
Star Strider
Star Strider on 9 Dec 2016
Are you asking about MATLAB script ‘.m’ files or binary ‘.mat’ files?

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Answers (2)

Park Joohyung
Park Joohyung on 9 Dec 2016
I`m answering assuming that you are mentioning '.mat' file. ('.m' file is merely a matlab script file..) If the data you want to load has regular name, like 'name1.mat', 'name2.mat'..., I recommend you to use 'eval' function with for loop.
for i=1:10
eval( ['load(''name' num2str(i) '.mat'')'] );
end
  2 Comments
Stephen23
Stephen23 on 10 Dec 2016
Edited: Stephen23 on 10 Dec 2016
Do not do this. This is pointless usage of eval, which serves no functional purpose at all in this code, and will only make this code slower, buggier, and harder to follow:
Instead of writing cargo-cult code using eval, simply call load directly:
S = load(sprintf('name%d.mat',k))
Park Joohyung
Park Joohyung on 10 Dec 2016
Thank you stephen, i admit that, your code looks much simpler.

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Image Analyst
Image Analyst on 10 Dec 2016
See the FAQ for how to process a bunch of files: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F.
In the middle of the loop, put Stephen's code to store all the structures pulled from your mat files.
matFullFileName = fullfile(pwd, sprintf('name%d.mat',k)); % Whatever.....
S{k} = load(matFullFileName) % Store this file's structure in our structure array.

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