Where do MATLAB-created .txt files get saved?
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Alexander Ketzle
il 10 Nov 2021
Commentato: Alexander Ketzle
il 10 Nov 2021
I'm a student looking to do some basic data analysis from files using MATLAB, and was learning how to use fopen and related commands, currently I'm making a dummy file and reading it using this code:
fileName = 'nums.txt';
x = 1:1:5;
y = [x;rand(1,5)];
fileID = fopen(fileName,'w');
fprintf(fileID,'%g %g\n',y);
fclose(fileID);
disp('file start');
type nums.txt
disp('file end');
fileID = fopen(fileName,'r');
formatSpec = '%g %g';
sizeA = size(y);
A = fscanf(fileID,formatSpec,sizeA)';
I just have one question: Where does MATLAB store this file? Is there a specified directory? And could I specify the full path of where the file gets saved?
Thank you!
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Jan
il 10 Nov 2021
Modificato: Jan
il 10 Nov 2021
If you do not specify a folder, the current directory is used. See
help cd
help pwd
Note, that pwd is just a wrapper function for cd , so prefer the later command.
Of course you can specify a folder:
fileName = fullfile(cd, 'nums.txt');
fileName = fullfile(tempdir, 'nums.txt');
fileName = 'D:\my\sub\folder\nums.txt'
... etc
After starting Matlab the current folder can be defined differently according to the chosen preferences. It can be a fixed folder, the last active folder in the former Matlab session or the user folder, e.g. under Windows "%APPDATA%\MATLAB" or similar.
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