MinuitQuantileRegression1DFcn.hh
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MinuitQuantileRegression1DFcn.hh
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	#ifndef NPSI_MINUITQUANTILEREGRESSION1DFCN_HH_
	#define NPSI_MINUITQUANTILEREGRESSION1DFCN_HH_

	/*!
	// \file MinuitQuantileRegression1DFcn.hh
	//
	// \brief Minuit function to minimize for local quantile regression
	// with single predictor
	//
	// Author: I. Volobouev
	//
	// April 2011
	*/

	#include "npstat/stat/QuantileRegression1D.hh"

	#include "Minuit2/FCNBase.h"

	namespace npsi {
	/**
	// Target minimization function adapter class for running local quantile
	// regression fits with one predictor by Minuit2
	*/
	template <typename MyPoint, typename WeightType>
	class MinuitQuantileRegression1DFcn : public ROOT::Minuit2::FCNBase
	{
	public:
	/** This class will not own any pointers or references */
	inline MinuitQuantileRegression1DFcn(
	const npstat::QuantileRegression1D<MyPoint, WeightType>& qr,
	const double up = 0.05)
	: qr_(qr), up_(up) {}

	inline virtual ~MinuitQuantileRegression1DFcn() {}

	inline virtual double operator()(const std::vector<double>& x) const
	{
	assert(!x.empty());
	return qr_(&x[0], x.size());
	}

	inline double Up() const {return up_;}

	private:
	const npstat::QuantileRegression1D<MyPoint, WeightType>& qr_;
	double up_;
	};
	}

	#endif // NPSI_MINUITQUANTILEREGRESSION1DFCN_HH_