Fityk

Fityk
	Fityk 1.0.1 under Windows
Developer(s)	Marcin Wojdyr
Initial release	2004
Stable release	1.2.1 / November 5, 2012
Repository	github.com/wojdyr/fityk ;
Written in	C++ genre = Curve fitting
Operating system	Cross-platform
License	GNU GPLv2+
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 GNU/Linux, Mac OS X, 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 peak-o-mat and MagicPlot 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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