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<a name="hist"></a>
<h3>Histogram package</h3>
<p>
Modify implementation of the Fit function in the histograms and data classes to use a new common implementation, defined in the file <tt>HFitImpl.cxx</tt>. This file provides the implementation of the function used for bin fitting of the data objects of the histogram package, TH1's, TGraph, TMultiGraph, TGraph2D,  and un-binned maximum likelihood fit for TTree data (used by the <tt>TTree::UnbinnedFit</tt> method).

<h4><tt>HFitInterface.h</tt></h4