Comparison of the peak detection functions findpeaksG, findpeaksb,
  findpeaksb3, and findpeaksfit for a computer-generated signal with
  multiple peaks on a variable baseline plus variable random noise. You may
  change the lines here marked by <<< to modify the character of the signal
  peaks, baseline, and noise. For example, you can change the peak shape in
  line 19, peak positions, heights, and widths in lines 14-16, the sampling
  density in line 12, baseline shape in line 32, baseline amplitude in line
  20, noise type in line 39, noise amplitude in line 18, and the baseline
  correction mode in line 23. Adjust the signal, baseline, and noise to
  look like your data, to see which methods result in the lowest peak
  parameter errors.