opening different folders with different name and read CSV files
9 次查看(过去 30 天)
显示 更早的评论
Hi, I want to open different folders with Matlab and then open different CSV files in each folder and read some specific sheets and columns. I can read the files from specific columns or sheet; however, my problem is that I cannot open different folders.
- The first problem I have is that the files' name are in this form: F21802010055 or F21802010058 so they are not in row.
- Also, each folder may have a different number of CSV files. For example folder F21802010055 has two CSV files with the names of F21802010055-201801-21_00-17 and F21802010055-201801-22_00-12 and folder F21802010058 has one csv file with the name of *F21802010058-201801-21_00-17*Can you please advise what would be the best approach to open these files?
0 个评论
采纳的回答
Ameer Hamza
2018-5-28
Use FEX::subdir to find all the files in the subfolders. Download this package, extract it and place it on MATLAB path. Here is a general template of what to do
files = subdir('C:\path_to_csv_folders\*.csv'); % here specify the path to top folder which contain all the other csv files
for i=1:numel(files) . % for loop will iterate over all file names
filename = files(i).name;
data = csvread(filename); % or readtable() or whatever function you are using to read csv file
% do you processing
end
Note that in subdir() all the CSV files doe not need to be present in the top folder. You can have several subfolders under the top folders and subfolder can contain several CSV files. subdir() can handle all the recursive file paths.
4 个评论
Ameer Hamza
2018-5-28
Alternatively you can use, set path button on the top bar in MATLAB window to add a folder to MATLAB path.
更多回答(1 个)
Roozbeh Yousefnejad
2018-5-28
2 个评论
Ameer Hamza
2018-5-29
Yes. You can get this by skipping last 4 characters from the filename
filename(1:end-4)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Spreadsheets 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!