MATLAB: how to read every Nth line of a text file?

Question

I have some data that\'s formatted as follows:

dtau     E_av        variance    N_sims      Time
0.001   0.497951    0.000211625 25      Sun Apr  3 18:18:12          


        

Answer 1

fid = fopen('data.text')
while ~feof(fid)
  results = textscan(fid, '%f %f %f %f', 1,'headerlines',1);
  //Processing...

  for i = 1:2
    fgets(fid)
  end
end

fgets reads until the end of a line, and returns the text on that line. So, just call it twice to skip two lines (discarding the return value of the function).