Fityk
Developer(s) | Marcin Wojdyr |
---|---|
Initial release | 2004 |
Stable release | 1.3.1
/ 19 December 2016 |
Repository | |
Written in | C++ |
Operating system | Cross-platform |
Type | Curve fitting |
License | GNU GPL |
Website | fityk |
Fityk is a curve fitting and data analysis application, predominantly used to fit analytical, bell-shaped functions to experimental data. It is positioned to fill the gap between general plotting software and programs specific for one field, e.g. crystallography or XPS.[1]
Originally, Fityk was developed to analyse powder diffraction data. It is also used in other fields that require peak analysis and peak-fitting, like chromatography or various kinds of spectroscopy.[2]
Fityk is distributed under the terms of GNU General Public License, but since version 1.0.0, subscription is required for downloading binaries. It runs on Linux, macOS, Microsoft Windows, FreeBSD and other platforms. It operates either as a command line program or with a graphical user interface.
It is written in C++, using wxWidgets, and providing bindings for Python and other scripting languages.
Features[]
- three weighted least squares methods:
- Levenberg-Marquardt algorithm,
- Nelder-Mead method
- Genetic algorithm
- about 20 built-in functions and support for user-defined functions
- equality constraints
- data manipulations,
- handling series of datasets,
- automation of common tasks with scripts.
Alternatives[]
The programs LabPlot, MagicPlot and have similar scope.
More generic data analysis programs with spread-sheet capabilities include the proprietary Origin and its free clones QtiPlot and SciDAVis.
See also[]
- Comparison of numerical analysis software
External links[]
References[]
- ^ Wojdyr, M. (1 October 2010). "Fityk: a general-purpose peak fitting program". Journal of Applied Crystallography. 43 (5): 1126–1128. doi:10.1107/S0021889810030499.
- ^ Wojdyr, M.; Gierlotka, S.; Palosz, B. (26 August 2004). "FITYK – peak-fitting software with support for powder patterns analysis". Acta Crystallographica Section A Foundations of Crystallography. 60 (a1): s246–s246. doi:10.1107/S010876730409511X.
- 2004 software
- Data analysis software
- Free plotting software
- Free science software
- Free software programmed in C++
- Free software projects
- Regression and curve fitting software
- Software that uses wxWidgets