Fityk

Fityk
	Fityk 1.0.1 under Windows
Developer(s)	Marcin Wojdyr
Initial release	2004; 20 years ago
Stable release	1.3.1 / 19 December 2016; 7 years ago
Repository	github.com/wojdyr/fityk ;
Written in	C++
Operating system	Cross-platform
Type	Curve fitting
License	GNU GPL
Website	fityk.nieto.pl

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.

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.

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:
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 peak-o-mat have similar scope.

More generic data analysis programs with spread-sheet capabilities include the proprietary Origin and its free clones QtiPlot and SciDAVis.

External links

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Features

Alternatives

See also

External links