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  8. fityk: fityk (program for data processing and nonlinear curve fitting)
  9. fityk:
  10. fityk: Fityk is a program for data processing and nonlinear curve fitting.
  11. fityk: Primarily used:
  12. fityk: - by scientists who analyze data from powder diffraction,
  13. fityk: chromatography, photoluminescence and photoelectron spectroscopy,
  14. fityk: infrared and Raman spectroscopy, and other experimental techniques;
  15. fityk: - to fit peaks -- bell-shaped functions (Gaussian, Lorentzian, Voigt,
  16. fityk: Pearson VII, bifurcated Gaussian, EMG, Doniach-Sunjic, etc.);
  17. fityk: but it is suitable for fitting any curve to 2D (x,y) data.
  18. fityk: