How can I access data from folders?

조회 수: 31 (최근 30일)
SM
SM 2020년 7월 13일
댓글: Walter Roberson 2020년 7월 17일
Code
files = dir('H:\Project Two\Programming and DataSet');
% Get a list of all files and folders in this folder.
names = {files.name};
% Get a logical vector that tells which is a directory.
dirFlags = [files.isdir] & ~strcmp(names, '.') & ~strcmp(names, '..');
% Extract only those that are directories.
subDirsNames = names(dirFlags);
Output
subDirsNames =
1×2 cell array
{'Instance01'} {'Instance02'}
Now, Instance01 folder has two files which are costMatrix.dat and ProcessMatrix.dat. Silmilarly, Instance02 folder has two files which are costMatrix.dat and ProcessMatrix.dat. First, I want to access and work on Instance01 folder and once it is done, I want to access and work on the Instance02. How can I do that?

답변 (1개)

Walter Roberson
Walter Roberson 2020년 7월 13일
files = dir('H:\Project Two\Programming and DataSet\*\*.dat');
names = fullfile( {files.folder}, {files.name} );
names will now be the fully-qualified names of .dat files, each with its appropriate folder name.
Note though that names will not be subdivided up into folders.
  댓글 수: 4
SM
SM 2020년 7월 13일
Instance01 and Instance02 contain similar types of data set but in different sizes. First I want to work on the data set of Instance01 to be optimized and store in another file. Once the Instance01 will be optimized, the Instance02 need to be accessed and optimized. So one folder will be accessed once.
Folder name could be sequential such as Instance1, Instance2, Instance3,.....,Instance20. So, sprintf('Instance%d', k) could be used. It forces to come sequentially I guess. What do you think?
Walter Roberson
Walter Roberson 2020년 7월 17일
sprintf('Instance%d', k)
should work if you want folders such as Instance1 Instance2 . Your earlier used Instance01 Instance02 which would correspond to
sprintf('Instance%02d', k)

댓글을 달려면 로그인하십시오.

카테고리

Help CenterFile Exchange에서 Startup and Shutdown에 대해 자세히 알아보기

태그

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by