BCMTFSystematicVariation.h

#ifndef __BCMTFSYSTEMATICVARIATION__H
#define __BCMTFSYSTEMATICVARIATION__H

/*
 * Copyright (C) 2007-2018, the BAT core developer team
 * All rights reserved.
 *
 * For the licensing terms see doc/COPYING.
 * For documentation see http://mpp.mpg.de/bat
 */

// ---------------------------------------------------------

#include <vector>

class TH1D;

// ---------------------------------------------------------
class BCMTFSystematicVariation
{
public:

    BCMTFSystematicVariation(int nprocesses);

    ~BCMTFSystematicVariation();

    TH1D* GetHistogramUp(int index)
    { return fHistogramUpContainer.at(index); };

    TH1D* GetHistogramDown(int index)
    { return fHistogramDownContainer.at(index); };

    void SetHistogramUp(int index, TH1D* hist)
    { fHistogramUpContainer[index] = hist; };

    void SetHistogramDown(int index, TH1D* hist)
    { fHistogramDownContainer[index] = hist; };

    void SetHistograms(int index, TH1D* hist_up, TH1D* hist_down)
    {
        fHistogramUpContainer[index] = hist_up;
        fHistogramDownContainer[index] = hist_down;
    };

    void AddHistogramUp(TH1D* hist)
    { fHistogramUpContainer.push_back(hist); };

    void AddHistogramDown(TH1D* hist)
    { fHistogramDownContainer.push_back(hist); };

    void AddHistograms(TH1D* hist_up, TH1D* hist_down)
    {
        fHistogramUpContainer.push_back(hist_up);
        fHistogramDownContainer.push_back(hist_down);
    };

private:

    std::vector<TH1D*> fHistogramUpContainer;

    std::vector<TH1D*> fHistogramDownContainer;

};
// ---------------------------------------------------------

#endif