| <?xml version="1.0" encoding="UTF-8"?> |
| <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> |
| <pkgmetadata> |
| <herd>sci</herd> |
| <longdescription lang="en"> |
| Fityk is a program for nonlinear fitting of analytical functions |
| (especially peak-shaped) to data. It can also be used to display |
| data or to remove baseline from data. |
| |
| It is reported to be used in crystallography, chromatography, |
| photoluminescence, infrared and Raman spectroscopy and other fields. |
| |
| 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 a graphical interface (and also command line |
| interface), various optimization methods (standard Marquardt |
| least-squares algorithm, Genetic Algorithms, Nelder-Mead simplex), |
| equality constraints, modeling error of x coordinate of points |
| (eg. zero-shift of instrument), handling series of datasets, |
| automation of common tasks with scripts, and more. |
| </longdescription> |
| </pkgmetadata> |
