deletions | additions       diff --git a/Fitting.tex b/Fitting.tex  index b37fa4a..5490fc3 100644  --- a/Fitting.tex  +++ b/Fitting.tex 
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In general a model can be automatically built from any function. Before fitting all the model parameters need to have assigned an initial value and (optional) some constrains. A series of functions starting with \verb|factory| in \verb|mfit| return pre-initialized models (for E and S histogram fitting) for commonly used functions, for example 1 or 2 gassian peaks with or without "bridge" function.  For example, to fit the E histogram of bursts in \verb|ds| with two Gaussian peaks  we execute: \begin{verbatim}  bext.bursts_fitter(ds, 'E', binwidth=0.03, model=mfit.factory_two_gaussians())