How to read many arbitrary text files in MATLAB?

Dear everyone,

Please help me to solve this problem. I need to make a code that can read data from a text file for example ClCdCm.txt. If there is only one file, it can be read easily by the following code:

ClCd = fopen('ClCdCm.txt')                   % Read Cl, Cd and Cm data
C2_text = textscan(ClCd,'%s',4);
C2_data = textscan(ClCd, '%f %f %f %f');

However, now I have many text files for example ClCdCm1.txt , ClCdCm2.txt , ClCdCm3.txt ,... These files are generated by another program and we do not know how many file there will be. There can be one file, two files, ten files or whatever. But the files are named with a rule as above. Can anyone help me to write a code to manage and read these files?

Thank you so much!

Answer 1

[Kelly Kearney]

 F = dir('ClCdCm*.txt');
 nfile = length(F);

 ctext = cell(nfile, 1);
 cdata = cell(nfile, 1);

 for ii = 1:length(F)
     fid = fopen(F(ii).name);
     ctext{ii} = textscan(fid,'%s',4);
     cdata{ii} = textscan(fid, '%f %f %f %f');
     fclose(fid);
 end

I used cell arrays in this example because I wasn't sure if each file will have the same number of rows. You can modify that as appropriate to your data.

[Phan]

Thank you so much! What a great answer! Thanks again!

Answer 2

[Sara]

k = 1;
while exist(['ClCdCm',num2str(k),'.txt'],'file')
  %insert code to read file
  k = k + 1;

end

[Phan]

Thank you so much for your help!