insert and run multiple files

Dears, I tried to import multiple (.dat) files. It was not possible to read them by using (importdata or dlmread). always appear an error.where is the problem?

files = dir('*.dat');
for K = 1:length(files);
  data(K,:) = dlmread(files(K).name, ';');
end ;

please, i need help.

Regards,

[Azzi Abdelmalek]

What error? post the message

[laser laser12]

Error using dlmread (line 119) The file 'pl1.dat' could not be opened because: No such file or directory.

*The same message appears if I use importdata

[dpb]

Show us the script in context; it would seem that if length(files)>0 then there should be at least one file opened from the above. Ergo, one is left to conclude somehow something else is going on since the message is clear that the file doesn't actually exist.

Answer 1

[Image Analyst]

I find that hard to believe. If dir() found it, then it won't subsequently say it's not there. Here, try this more robust code and tell us what it says:

folder = pwd;  % Whatever folder you want.
filePattern = fullfile(pwd, '*.dat');
files = dir(filePattern);
if ~isempty(files)
  numberOfFiles = length(files)
  % Initiliaze data.  Assume one row and 42 columns of data in each data file.
  data = zeros(numberOfFiles, 42);
  for K = 1:length(files)
    thisFileName = fullfile(folder, files(K).name);
    fprintf('Trying to open %s\n', thisFileName);
    if exist(thisFileName, 'file')
      % Read in row vector from file.
      data(K,:) = dlmread(thisFileName, ';');
    else
      message = sprintf('Warning: %s does not exist', thisFileName);
      uiwait(warndlg(message));
    end
  end
else
  message = sprintf('Warning: no .dat files in folder\n%s', folder);
  uiwait(warndlg(message));
end

Obviously, change 42 to however many columns there actually are in your data file.