(C++) GetCumulativeHistogram

 

Math and std::vector code snippet to calculate a cumulative histogram from a histogram.

 

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//From htpp://www.richelbilderbeek.nl/CppGetCumulativeHistogram.htm template <class T> const std::vector<T> GetCumulativeHistogram(const std::vector<T>& histogram) {   std::vector<T> v(histogram.begin(),histogram.end() );   const int size = static_cast<int>(v.size());   for (int i=1; i!=size; ++i)   {     v[i] += v[i-1];   }   return v; }