MATLAB: Load multiple .mat file and do same calculation on each file

for loop

i have 100 .mat file name "A00001-A00100". i want to create loop that do calculation (written in code) one by one on each file but my code just do calculation on first file (A00001.mat) only. please help!,
% loop to do same calculation on each file,
for i=1:100
  load(['A000' num2str(i,'%02d') '.mat' ]);
  %calculations
  N=9000;
  gqrs('A00001',N);
  ann=rdann('A00001','qrs',[],N);
  [tm,sig]=rdsamp('A00001',[],N);
end

Best Answer

Your code works only for A00001 because you set 'A00001' as input arguments for GQRS, RDANN, RDSAMP. Change the numbers with index i.
for i=1:5
    str = 'A000' num2str(i,'%02d');
    filename = [str, '.mat']
    load(str); 
      % calculations 
      N = 9000; 
      gqrs(str, N); 
      ann = rdann(str, 'qrs', [], N); 
      [tm,sig] = rdsamp(str, [], N); 
  end
Also, if you breakdown the problem, you can easily find which part you need to change.
  1. Made the maximum loop index smaller from 100 to 5.
  2. To check the mat-file was loaded correctly, created the variable, filename.
  3. Since the first loading part worked correctly, checked the second part.
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