Import multiple files and plot data.

Hi,

1. I am trying to write a script capable of opening all files from within the same folder.
2. Each file has two columns coordinated (X, Y) in .ASC-II format.
3. After importing all the files in the same folder, I need to plot all the graphics separately.
4. The script I wrote is opening the correct number of files and also naming them correctly, however the 47 cells of myData have the values of the first file, as if it was copying 47 times the file “run_01”.

Could anyone suggest how to overcome this problem?

Thanks

-----

% Import data
run = importfile("D:\Desktop\Teste\run_01", [1, inf]); % describe the direction of the files.

numFiles = 47; % number of files you want to open (they must be inside the same folder) 
startRow = 2; % The loop starts from the second file
endRow = inf;
myData = cell(numFiles,1);

for fileNum = 1:numFiles
    fileName = sprintf('run_%02d',fileNum);
    myData{fileNum} = importfile("D:\Desktop\Teste\run_01",[startRow,endRow]);
end

% To remove NaN cells 
for fileNum = 1:numFiles
    fileName = sprintf('run_%02d',fileNum);
    myData{fileNum, 1} ([1:2,1003:end],:) = [];
end

% plot 
figure
for i = 1:length(myData)
    plot(myData{i,1}) ;
end

Answer 1

[Arthur Roué]

Here is the mistake

for fileNum = 1:numFiles
    fileName = sprintf('run_%02d',fileNum);
    myData{fileNum} = importfile("D:\Desktop\Teste\run_01",[startRow,endRow]);
end

Should be

for fileNum = 1:numFiles
    myData{fileNum} = importfile(sprintf('D:\Desktop\Teste\run_%02d',fileNum),[startRow,endRow]);
end

[Rafael Brognoli Recco]

Thanks for the help, but your suggestion didn't work.

I found this recommendation to solve my problem.

for fileNum = 1:numFiles
    fileName = sprintf('run_%02d',fileNum);
    myData{fileNum} = importfile(fileName,[startRow,endRow]);
end

[Arthur Roué]

No problem. It's basicaly the same solution, but I used your absolute path. The mistake in the original code was that you import always the same file (run_01) with this line

myData{fileNum} = importfile("D:\Desktop\Teste\run_01",[startRow,endRow]);

If my suggestion didn't work, it probably because the absolute path is not the same. The new line works (I think) because file to import is on MATLAB path.

If your problem is solved you can close and/or accept the answer.

Have nice day !