TSFunc1DGaussPdf.h

/*
 * TSFunc1DGaussPdf.h
 *
 *  Created on: Aug 4, 2014
 *      Author: Silvestro di Luise
 *              Silvestro.Di.Luise@cern.ch
 *
 *
 *
 */

#ifndef TSFUNC1DGAUSSPDF_H_
#define TSFUNC1DGAUSSPDF_H_

#include <iostream>

#include <TMath.h>


#include "TSFunction1D.h"



using std::cout;
using std::endl;
/*
 *
 */


class TSFunc1DGaussPdf: public TSFunction1D {

public:
    TSFunc1DGaussPdf(TString name, TString title
                    ,const TSVariable &var_x, const TSParameter &mean, const TSParameter &sigma);


    virtual ~TSFunc1DGaussPdf();

    virtual double Evaluate() const;


    void SetSigmaSpread(double v) const {fsigma_spread=v;}
    virtual double GetSigmaSpread() const {cout<<"gatspr:"<<this<<endl;return fsigma_spread;}

    //for direct access
    double GetMean() const {return GetMeanX(); }
    double GetMeanX() const { return fMean ? fMean->GetValue(): 0; }
    double GetSigma() const { return GetSigmaX(); }
    double GetSigmaX() const {
        return fSigma ? TMath::Sqrt( TMath::Power(fSigma->GetValue(),2)+TMath::Power(fsigma_spread,2) ): 0;
    }

    const TSParameter *GetParamMean() const {return fMean;}
    const TSParameter *GetParamMeanX() const {return fMean;}
    const TSParameter *GetParamSigma() const {return fSigma;}
    const TSParameter *GetParamSigmaX() const {return fSigma;}

protected:

    const TSParameter *fMean;
    const TSParameter *fSigma;


    mutable double fsigma_spread;

};

#endif /* TSFUNC1DGAUSSPDF_H_ */