MATLAB: Regarding specific files from folder

problem in reading data files

I have some data sets its for daily observations and I would like to read data for one month every time ( 30 files) and after that it should go to next month. can anybody tell me how to fix this problem?

Best Answer

Does this solution work for you? I have not tested it, let me know if it works.

files = dir('*.h5');    % Find the files with extension .h5 in the current directory.
monthsStr = {'01';'02';'03';'04';'05';'06';'07';'08';'09';'10';'11';'12'};
for ii = 1:numel(files)  % In theory, you have 365 files.
  for year = 2009:2010
    for jj 1:numel(monthsStr)
        nameFound = strfind(files(ii).name, ['GSAT' num2str(year) monthsStr{jj}]); % The mistake was here =P .
        if nameFound
          fid = fopen(files(ii).name);
          % Do whatever you need with the files here.
          fclose(fid);
        end
    end
  end
end

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MATLAB: How to read different file name using for loops

files = dir('*.HDF5') ;
N = length(files) ;
for i = 1:N
    thisfile = files(i).name ; 
    % do what you want ;
end

MATLAB: Individual files reading

On a quick thought, it would be something like this:

files = dir('*.h5');    % Find the files with extension .h5 in the current directory.

month = '01';           % Month must be a string ('01' for January, '02' for February, etc.).

for ii = 1:numel(files)
    nameFound = strfind(files(ii).name, ['GSAT2009' month]);
      if nameFound
          fid = fopen(files(ii).name);
          % Do whatever you need with the files here.

          fclose(fid);
      end
  end

EDIT

If you want to read year information separately, you can use the following, which is very similar:

files = dir('*.h5');    % Find the files with extension .h5 in the current directory.
month = '01';           % Month must be a string ('01' for January, '02' for February, etc.).
year = '2009';          % Year must be a string.

NOTE: If month or year are not strings and are numeric (double), you can use the function num2str.

for ii = 1:numel(files)
    nameFound = strfind(files(ii).name, ['GSAT' year month]);
      if nameFound
          fid = fopen(files(ii).name);
          % Do whatever you need with the files here.
          fclose(fid);
      end
  end

Try it and let me know if it works.

Best Answer

Related Solutions

MATLAB: How to read different file name using for loops

MATLAB: Individual files reading

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