# FUFUFA (FUnctional FItting FAcility)

## Function

non-linear interactive fit SEVERAL spectra to a user-defined FUNCTION.

It provides with a point-and-click application for fitting many data sets (usually imported from a SPEC file, that can be prepared with Exodus or Xplot) with a user-defined function.

The function can be built interactively using a set of components (straight line, polynomial, peaks (gaussian, lotentzian and pseudovoigt), steps (error function and arc tangent) or any user-define function).

The application allows to fit simultaneously several data sets and to refine individually the fits. A plot of the fitted parameters and chi square versus the data set index can help to estimate the quality of the fits.

## Documentation

- application doc