Fityk (program for data processing and nonlinear curve fitting)
Fityk [fi:tik] is a program for data processing and nonlinear curve fitting.
Primarily used:
- by scientists who analyze data from powder diffraction,
chromatography, photoluminescence and photoelectron spectroscopy,
infrared and Raman spectroscopy, and other experimental techniques;
- to fit peaks -- bell-shaped functions (Gaussian, Lorentzian, Voigt,
Pearson VII, bifurcated Gaussian, EMG, Doniach-Sunjic, etc.);
but it is suitable for fitting any curve to 2D (x,y) data.
Fityk is distributed under an open source licence (GPLv2+).
Optional dependency: gnuplot (can be used with the CLI)
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