How to print all loaded files in the workspace?

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Daniel Tanner
Daniel Tanner 2019-12-16
评论： Stephen23 2019-12-16
Hi, I am still new to MatLab and I am currently stuck on how to load in files using a 'for' loop. I can get the loop to work, however it only prints the last data file in the work space and not all of them. Here is my code:
for n = [1,2,4]
filename1 = sprintf('SECR%d0_dt.mat',n);
filename2 = sprintf('SECX%d0_dt.mat',n);
S = load(filename1);
S2 = load(filename2);
end
Where the files I want to input are 'SECR10_dt.mat','SECR20_dt.mat' and 'SECR40_dt.mat' and the same for SECX...
I understand that as there is only a total of six files that it will be easy to just input them separately, but I this code will become useful for me later on.
Any help is greatly appreciated, thanks!

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Stephen23
Stephen23 2019-12-16
编辑：Stephen23 2019-12-16
https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html
Adapting the example from the documentation slightly:
V = [1,2,4];
N = numel(V);
C = cell(N,2); % preallocate!
for k = 1:N
f1 = sprintf('SECR%d0_dt.mat',V(k));
f2 = sprintf('SECX%d0_dt.mat',V(k));
C{k,1} = load(f1);
C{k,2} = load(f2);
end
The imported data wil be available in the cell array C:
https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-cell-array.html
If all of the load-ed structures have the same fields, then you could convert them into one non-scalar structure, which has some convenient syntaxes for accessing the data:
https://www.mathworks.com/help/matlab/matlab_prog/access-multiple-elements-of-a-nonscalar-struct-array.html
  2 个评论
Daniel Tanner
Daniel Tanner 2019-12-16
This is exactly what I wanted, thank you! To improve it further, as the only variation in data files is either SECX or SEXR followed by either 10, 20 or 40, is there a way to complete this without having to create two filenames and using just the sprintf function?
Stephen23
Stephen23 2019-12-16
You could use a loop, but for just two names this likely to be more complex.
You could use dir, if that returns the filenames that you require.
Keep in mind that calling sprintf and load twice might be the simplest solution...

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