QtiSAS & QtiKWS

SA(N)S related software: data reduction, analysis, global instrumental fit

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Very Small Angle Scattering KWS-3 "VerySANS" www.verysans.com

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fit-curve:easy-fit


Global Fit      SA(N)S Fit      Superpositional Fit      Easy Fit (eFit)      Batch Fit (Set-by-Set)     



Curve(s) Fitting :: Easy Fit (eFit)



eFit mode of the fitting interface is aimed to simplify standard fitting procedures, when the fitting function is prepared for the “easy” fitting procedure in advance. For example, in this presentation the form factor of the cylinder is shown. This form factor has many parameters, but by default only three is fittable (adjustable): length, diameter and volume fraction of cylinders. Additionally, many different fitting options could be set in advance on the level of the function compilation…

Two ways of eFit usage:

1. via Fit.Curve(s) interface:

  • Select Data Range of the active curve in active Graph;
  • Select Function in the Fit.Curve(s) interface;
  • (a) Push Button “eFit” in the Fit.Curve(s) interface;
  • (b) Push Button “eFit+++” in the Fit.Curve(s) interface.

2. Via Analysis|eFit Menu:

  • Select Data Range of the active curve in active Graph;
  • Select eFit function in Analysis|eFit Menu of QtiSAS.


efit-introduction.pdf cylinder-efit.fif data-cylinder.qti

fit-curve/easy-fit.txt · Last modified: 2021/05/04 11:11 by Vitaliy Pipich