HFitInterface.h File Reference

#include "TFitResultPtr.h"

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Namespaces
namespace	ROOT
	This file contains a specialised ROOT message handler to test for diagnostic in unit tests.
namespace	ROOT::Fit
	Namespace for the fitting classes.
namespace	ROOT::Math

Enumerations
enum class	ROOT::Fit::EChisquareType { ROOT::Fit::kNeyman = 0 , ROOT::Fit::kPLikeRatio , ROOT::Fit::kPearson }
enum class	ROOT::Fit::EFitObjectType { ROOT::Fit::kHistogram , ROOT::Fit::kGraph }

Functions
double	ROOT::Fit::Chisquare (const TGraph &h1, TF1 &f1, bool useRange)
	compute the chi2 value for a graph given a function (see TGraph::Chisquare)
double	ROOT::Fit::Chisquare (const TH1 &h1, TF1 &f1, bool useRange, EChisquareType type)
	compute the chi2 value for an histogram given a function (see TH1::Chisquare for the documentation)
void	ROOT::Fit::FillData (BinData &dv, const TGraph *gr, TF1 *func=nullptr)
	fill the data vector from a TGraph.
void	ROOT::Fit::FillData (BinData &dv, const TGraph2D *gr, TF1 *func=nullptr)
	fill the data vector from a TGraph2D.
void	ROOT::Fit::FillData (BinData &dv, const TH1 *hist, TF1 *func=nullptr)
	fill the data vector from a TH1.
void	ROOT::Fit::FillData (BinData &dv, const THnBase *hist, TF1 *func=nullptr)
	fill the data vector from a THnBase.
void	ROOT::Fit::FillData (BinData &dv, const TMultiGraph *gr, TF1 *func=nullptr)
	fill the data vector from a TMultiGraph.
void	ROOT::Fit::FillData (SparseData &dv, const TH1 *hist, TF1 *func=nullptr)
	fill the data vector from a TH1 with sparse data.
void	ROOT::Fit::FillData (SparseData &dv, const THnBase *hist, TF1 *func=nullptr)
	fill the data vector from a THnBase.
TFitResultPtr	ROOT::Fit::FitObject (TGraph *gr, TF1 *f1, Foption_t &option, const ROOT::Math::MinimizerOptions &moption, const char *goption, ROOT::Fit::DataRange &range)
	fitting function for a TGraph (called from TGraph::Fit)
TFitResultPtr	ROOT::Fit::FitObject (TGraph2D *gr, TF1 *f1, Foption_t &option, const ROOT::Math::MinimizerOptions &moption, const char *goption, ROOT::Fit::DataRange &range)
	fitting function for a TGraph2D (called from TGraph2D::Fit)
TFitResultPtr	ROOT::Fit::FitObject (TH1 *h1, TF1 *f1, Foption_t &option, const ROOT::Math::MinimizerOptions &moption, const char *goption, ROOT::Fit::DataRange &range)
	fitting function for a TH1 (called from TH1::Fit)
TFitResultPtr	ROOT::Fit::FitObject (THnBase *s1, TF1 *f1, Foption_t &option, const ROOT::Math::MinimizerOptions &moption, const char *goption, ROOT::Fit::DataRange &range)
	fitting function for a THn / THnSparse (called from THnBase::Fit)
TFitResultPtr	ROOT::Fit::FitObject (TMultiGraph *mg, TF1 *f1, Foption_t &option, const ROOT::Math::MinimizerOptions &moption, const char *goption, ROOT::Fit::DataRange &range)
	fitting function for a MultiGraph (called from TMultiGraph::Fit)
void	ROOT::Fit::FitOptionsMake (EFitObjectType type, const char *option, Foption_t &fitOption)
	Decode list of options into fitOption.
bool	ROOT::Fit::GetConfidenceIntervals (const TH1 *h1, const ROOT::Fit::FitResult &r, TGraphErrors *gr, double cl=0.95)
	compute confidence intervals at level cl for a fitted histogram h1 in a TGraphErrors gr
void	ROOT::Fit::Init2DGaus (const ROOT::Fit::BinData &data, TF1 *f1)
	compute initial parameter for 2D gaussian function given the fit data Set the sigma limits for zero top 10* initial rms values Set the initial parameter values in the TF1
void	ROOT::Fit::InitExpo (const ROOT::Fit::BinData &data, TF1 *f1)
	compute initial parameter for an exponential function given the fit data Set the constant and slope assuming a simple exponential going through xmin and xmax of the data set
void	ROOT::Fit::InitGaus (const ROOT::Fit::BinData &data, TF1 *f1)
	compute initial parameter for gaussian function given the fit data Set the sigma limits for zero top 10* initial rms values Set the initial parameter values in the TF1
TFitResultPtr	ROOT::Fit::UnBinFit (ROOT::Fit::UnBinData *data, TF1 *f1, Foption_t &option, const ROOT::Math::MinimizerOptions &moption)
	fit an unbin data set (from tree or from histogram buffer) using a TF1 pointer and fit options.