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Non-linear curve fitting and data analysis
Fityk is nonlinear curve-fitting and data analysis software. It supports data visualization, separation of overlapping peaks, and least squares fitting using standard Levenberg-Marquardt algorithm, a genetic algorithm, or Nelder-Mead simplex method. It knows common bell-shaped functions (Gaussian, Lorentzian, Pearson 7, Voigt, Pseudo-Voigt) and polynomials, but more sophisticated formulae can be added if needed. It also enables background substracting, data calibration and task automation with a simple script language. It is being developed to analyze powder diffraction patterns, but can be used to fit analytical functions to any kind of data.
DocumentationUser manual available at the official website and at fityk.readthedocs.org
released on 13 April 2014
Paid supportyes, see the website
git clone https://github.com/wojdyr/fityk.git
4 March 2003
Leaders and contributors
Resources and communication
|Required to build||wxWidgets 3.0 or later (for GUI only)|
|Required to build||readline and gnuplot (for command line only)|
|Required to build||Lua|
This entry (in part or in whole) was last reviewed on 13 February 2018.
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