ROOT::Math::Util Namespace Reference

namespace defining Utility functions needed by mathcore More...

Functions
template<class T >
std::string	ToString (const T &val)
	Utility function for conversion to strings. More...
double	EvalLog (double x)
	safe evaluation of log(x) with a protections against negative or zero argument to the log smooth linear extrapolation below function values smaller than epsilon (better than a simple cut-off) More...

Detailed Description

namespace defining Utility functions needed by mathcore

Function Documentation

double ROOT::Math::Util::EvalLog ( double  x )

inline

safe evaluation of log(x) with a protections against negative or zero argument to the log smooth linear extrapolation below function values smaller than epsilon (better than a simple cut-off)

Definition at line 55 of file Util.h.

Referenced by ROOT::Fit::FitUtil::EvaluateLogL(), ROOT::Fit::FitUtil::EvaluatePdf(), ROOT::Fit::FitUtil::EvaluatePoissonBinPdf(), ROOT::Fit::FitUtil::EvaluatePoissonLogL(), and ROOT::Minuit2::FumiliMaximumLikelihoodFCN::operator()().

template<class T >

std::string ROOT::Math::Util::ToString

(

const T &

val

)

Utility function for conversion to strings.

Definition at line 42 of file Util.h.

Referenced by DoNewMinimization(), fillTree(), FillUnBinData(), HFit::Fit(), FitUsingRooFit2(), GAMinimize(), Min2Minimize(), ROOT::Math::IBaseParam::ParameterName(), ROOT::Fit::FitResult::ParName(), ROOT::Fit::FitConfig::SetParamsSettings(), testLargeTreeRooFit(), and TBackCompFitter::ValidParameterIndex().