library/cpp/histogram/adaptive/common.h


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#pragma once 
 
#include <utility>
 
namespace NKiwiAggr { 
    using TWeightedValue = std::pair<double, double>; // value, weight
    using TQualityFunction = TWeightedValue (*)(const TWeightedValue&, const TWeightedValue&); 
 
    TWeightedValue CalcDistanceQuality(const TWeightedValue& left, const TWeightedValue& right); 
    TWeightedValue CalcWeightQuality(const TWeightedValue& left, const TWeightedValue& right); 
    TWeightedValue CalcWardQuality(const TWeightedValue& left, const TWeightedValue& right); 
}