MATLAB: Working with .mat file format and need to alter it according to requirements.

matMATLAB

Hi ,
I have a .mat file with 12 different parameters and each of these is a 30000*1 array.
I need to combine them to form an array with dimensions 30000*6 and rest 6 parameters I don't need. Also I have 60 of these .mat files with similar information. How can i get one .mat file with an array of (1800000*6) where 1800000 are the reading from all .mat files (30000*60 mat files)?

Best Answer

If the 60 mat files are in your current directory and the 6 parameters are named var1, var2, ... ,var6:
 d = dir('*.mat');
 for i=1:numel(d)
   load(d(i).name)
   if i == 1
     all = [var1 var2 var3 var4 var5 var6];
   else
     all = [all; var1 var2 var3 var4 var5 var6];
   end
 end
 save('all.mat', 'all')
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