QFitter.hh

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#ifndef _Q_FITTER_HH_
#define _Q_FITTER_HH_

#include "QError.hh"
#include "QCuore.hh"
#include "QVector.hh"
#include "QMathFunction.hh"

Q_BEGIN_NAMESPACE

class QFitter : public QMathFunction
{
    public:

        QFitter(QRoutinePointer funcpointer, unsigned int NParameters, double LowBound, double UpBound);
        
        QFitter(const QMathFunction& func);

        ~QFitter();
        
        void SetParameter(unsigned int p, double val, double min, double max);

        void SetParameter(unsigned int p, const char* name, double val, double min, double max);
        
        void FixParameter(unsigned int p, double val);
        
        void FixParameter(unsigned int p, const char* name, double val);

        void Print();

        void PrintResult();
        
        QError Fit(const QVector& data, double minfit, double maxfit);

        QError Fit(const QVector& data, double error, double minfit, double maxfit);

        QError Fit(const QVector& data, const QVector& errors, double minfit, double maxfit, double eqlenght = -1);

        QMathFunction GetFittedFunction();

        QVector& GetResiduals() {return fResiduals;}

        double GetChiSquare() {return fChiSquare;}

        void SetTF1(TF1& f1);

    private:

        static double RootRoutine(double* x, double* params);

        static const QMathFunction* fFunctionP;

        double* fParMin;
        double* fParMax;
        double* fParErr;
        bool* fIsFixed;

        QVector fResiduals;
        QVector fErrors;
        double fChiSquare;

};

Q_END_NAMESPACE

#endif

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