Import multiple files and plot data.
显示 更早的评论
Hi,
- I am trying to write a script capable of opening all files from within the same folder.
- Each file has two columns coordinated (X, Y) in .ASC-II format.
- After importing all the files in the same folder, I need to plot all the graphics separately.
- 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
采纳的回答
Arthur Roué
2020-7-16
编辑：Arthur Roué
2020-7-16
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
2 个评论
Rafael Brognoli Recco
2020-7-21
Arthur Roué
2020-7-21
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 !
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