To summarize, Fityk is a comprehensive and efficient application that is meant to help users perform nonlinear data fitting using as a basis the results of experiments from numerous fields of scientific activity. The tool allows users to exclude inactivate points from fitting operations and work with several datasets simultaneously. Moreover, Fityk enables users to perform 'Power Diffraction Analysis' using 'X-Ray' or 'Neutron' radiation and various wavelengths ('Cu', 'Ag', 'Mo','Fe', etc). The utility allows users to execute a script, use data point 'Transformations' or adjust the preferred 'Functions', with the possibility of choosing between a wide range of options, such as 'Quadratic', 'Cubic', 'Gaussian', 'Lorentzian', 'EMG', 'Polyline', 'ExpDecay', 'Voigt', 'Spline', 'DoniachSunjic' and many more, while also letting users create their own.
Users can work in 'Data Range', 'Add Peak' or 'Baseline' mode, according to their needs. The interface of Fityk is quite easy to understand, offering a toolbar for quick access to the most commonly used functions, as well as a menu bar, a main plot and a right-size panel where certain values can be edited.įityk provides users with several fitting methods, namely 'Levenberg – Marquardt', 'Nelder - Mead Simplex' and 'Genetic Algorithm', which can be of use in multiple analysis. These require a bit of documentation before being able to work with them properly, as such it is less approachable for novice users, though the more advanced can certainly appreciate its complexity. Fityk is user friendly, open source software for nonlinear curve fitting and data analysis. The program is fairly simple to work with, requiring minimal levels of knowledge or experience with similar tools, yet it features a set of rather complex functions. You can use DecayFit to: Analyse time-resolved fluorescence decays by iterative reconvolution or modified tailfitting.
It is aimed at experimental data resulted from a variety of domains, like chromatography, spectroscopy, crystallography and many others.
user-defined function or understand better how the program works. Fityk is an advanced and reliable software solution whose main purpose is to assist users in fitting data to nonlinear functions. Fityk is free software you can redistribute and modify it under the terms of the GPL.
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