Fityk 1.0.2


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License:
GPL
Category:
Math
Publisher:
Marcin-Wojdyr
Size:
791 KB
Last Updated:
2013-09-27
Operating System:
Mac OS X 10.4 or later
Price:
FREE
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Publisher's description - Fityk 1.0.2
 
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Fityk is an open source app for nonlinear fitting of analytical functions (especially peak-shaped) to data (usually experimental data).

Fityk is specialized in fitting peaks (bell-shaped functions like Gaussian, Loretzian, Pearson 7, Voigt) to experimental data. There are also people using it to remove the baseline from data, or to display data only.

Fityk is reportedly used in crystallography, chromatography, photoluminescence and photoelectron spectroscopy, infrared and Raman spectroscopy, to name but a few.

Fityk knows about common peak-shaped functions (Gaussian, Lorentzian, Voigt, Pearson VII, bifurcated Gaussian, EMG, Doniach-Sunjic, etc.) and polynomials. It also supports user-defined functions.

Fityk offers intuitive graphical interface (and also command line interface), various optimization methods (standard Marquardt least-square algorithm, Genetic Algorithms, Nelder-Mead simplex), equality constraints, modelling error of x coordinate of points (eg. zero-shift of instrument), handling series of datasets, automation of common tasks with scripts, and more.

Fityk is free and works under Mac OS X, Linux, FreeBSD, and MS Windows.

What`s New in This Release: [ read full changelog ]

· changed Data > Load File dialog
· fixed a few minor problems and a major one (GUI not working on OSX 10.5)


 

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