doc/v614/histops_8cxx.html

/*************************************************************************
 * Copyright (C) 1995-2015, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
#include "ROOT/THist.hxx"
#include <iostream>
void histops()
{
   using namespace ROOT;
   // Create a 2D histogram with an X axis with equidistant bins, and a y axis
   // with irregular binning.
   Experimental::TH2D hist1({100, 0., 1.}, {{0., 1., 2., 3., 10.}});
   // Fill weight 1. at the coordinate 0.01, 1.02.
   hist1.Fill({0.01, 1.02});
   Experimental::TH2D hist2({{{10, 0., 1.}, {{0., 1., 2., 3., 10.}}}});
   // Fill weight 1. at the coordinate 0.01, 1.02.
   hist2.Fill({0.01, 1.02});
   Experimental::Add(hist1, hist2);
   int binidx = hist1.GetImpl()->GetBinIndex({0.01, 1.02});
   std::cout << hist1.GetImpl()->GetBinContent(binidx) << std::endl;
}