GooFit::FitManagerMinuit2 Class Reference

#include <FitManagerMinuit2.h>

Public Member Functions
	FitManagerMinuit2 (PdfBase *dat)
ROOT::Minuit2::FunctionMinimum	fit ()
	This runs the fit. More...
void	setMaxCalls (unsigned int max_calls=0)
	Set the maximum number of calls. 0 for Minuit2 default. More...
Params *	getParams ()
	Get a pointer to the params. More...
FCN *	getFCN ()
	Get a pointer to the fcn. More...
	operator bool () const
	Check to see if fit is valid. More...
	operator int () const
	Return value for program. More...
void	setVerbosity (int value)
	Set the fitting verbosity. More...
int	getVerbosity () const
	Get the fitting verbosity. More...

Detailed Description

Definition at line 16 of file FitManagerMinuit2.h.

Constructor & Destructor Documentation

FitManagerMinuit2()

GooFit::FitManagerMinuit2::FitManagerMinuit2

(

PdfBase *

dat

)

Definition at line 15 of file FitManagerMinuit2.cpp.

    : upar_(*dat)
    , fcn_(upar_) {}

Member Function Documentation

fit()

Minuit2::FunctionMinimum GooFit::FitManagerMinuit2::fit

(

)

This runs the fit.

Definition at line 19 of file FitManagerMinuit2.cpp.

References GooFit::bold, GooFit::gray, GooFit::green, GooFit::host_callnumber, GooFit::InValid, GooFit::magenta, GooFit::red, GooFit::reset, and GooFit::Valid.

Referenced by fitAndPlot(), main(), make1BinSigmaMap(), make4BinSigmaMap(), makeOverallSignal(), makeSigmaMap(), runBackgroundDalitzFit(), runBackgroundSigmaFit(), runCanonicalFit(), runEfficiencyFit(), runGeneratedMCFit(), runSigmaFit(), runToyFit(), and runTruthMCFit().

                                              {
    auto val = Minuit2::MnPrint::Level();
    Minuit2::MnPrint::SetLevel(verbosity);

    // Setting global call number to 0
    host_callnumber = 0;

    CLI::Timer timer{"The minimization took"};

    Minuit2::MnMigrad migrad{fcn_, upar_};

    // Do the minimization
    if(verbosity > 0)
        std::cout << GooFit::gray << GooFit::bold;

    CLI::Timer avetimer{"Average time per call"};
    Minuit2::FunctionMinimum min = migrad(maxfcn_);

    // Print nice output
    if(verbosity > 0) {
        std::cout << GooFit::reset << (min.IsValid() ? GooFit::green : GooFit::red);
        std::cout << min << GooFit::reset;
        std::cout << GooFit::magenta << timer.to_string() << GooFit::reset << std::endl;
        std::cout << (avetimer / min.NFcn()).to_string() << std::endl;
    }

    if(min.IsValid()) {
        retval_ = FitErrors::Valid;
    } else {
        if(verbosity > 0) {
            std::cout << GooFit::red;
            std::cout << "HesseFailed: " << min.HesseFailed() << std::endl;
            std::cout << "HasCovariance: " << min.HasCovariance() << std::endl;
            std::cout << "HasValidCovariance: " << min.HasValidCovariance() << std::endl;
            std::cout << "HasValidParameters: " << min.HasValidParameters() << std::endl;
            std::cout << "IsAboveMaxEdm: " << min.IsAboveMaxEdm() << std::endl;
            std::cout << "HasReachedCallLimit: " << min.HasReachedCallLimit() << std::endl;
            std::cout << "HasAccurateCovar: " << min.HasAccurateCovar() << std::endl;
            std::cout << "HasPosDefCovar : " << min.HasPosDefCovar() << std::endl;
            std::cout << "HasMadePosDefCovar : " << min.HasMadePosDefCovar() << std::endl;
            std::cout << GooFit::reset;
        }

        retval_ = FitErrors::InValid;
    }

    // Set the parameters in GooFit to the new values
    upar_.SetGooFitParams(min.UserState());

    Minuit2::MnPrint::SetLevel(val);
    return min;
}

getFCN()

FCN* GooFit::FitManagerMinuit2::getFCN ( )

inline

Get a pointer to the fcn.

Definition at line 30 of file FitManagerMinuit2.h.

{ return &fcn_; }

getParams()

Params* GooFit::FitManagerMinuit2::getParams ( )

inline

Get a pointer to the params.

Definition at line 27 of file FitManagerMinuit2.h.

{ return &upar_; }

getVerbosity()

int GooFit::FitManagerMinuit2::getVerbosity ( ) const

inline

Get the fitting verbosity.

Definition at line 42 of file FitManagerMinuit2.h.

References GooFit::NotRun.

{ return verbosity; }

operator bool()

GooFit::FitManagerMinuit2::operator bool ( ) const

inline

Check to see if fit is valid.

Definition at line 33 of file FitManagerMinuit2.h.

References GooFit::Valid.

{ return retval_ == FitErrors::Valid; }

operator int()

GooFit::FitManagerMinuit2::operator int ( ) const

inline

Return value for program.

Definition at line 36 of file FitManagerMinuit2.h.

{ return static_cast<int>(retval_); }

setMaxCalls()

void GooFit::FitManagerMinuit2::setMaxCalls ( unsigned int  max_calls = 0 )

inline

Set the maximum number of calls. 0 for Minuit2 default.

Definition at line 24 of file FitManagerMinuit2.h.

Referenced by runBackgroundDalitzFit(), runBackgroundSigmaFit(), runCanonicalFit(), runGeneratedMCFit(), and runToyFit().

{ maxfcn_ = max_calls; }

setVerbosity()

void GooFit::FitManagerMinuit2::setVerbosity ( int  value )

inline

Set the fitting verbosity.

Definition at line 39 of file FitManagerMinuit2.h.

Referenced by GooFit::PdfBase::fitTo().

{ verbosity = value; }

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The documentation for this class was generated from the following files:

• /home/travis/build/GooFit/GooFit/include/goofit/fitting/FitManagerMinuit2.h
• /home/travis/build/GooFit/GooFit/src/goofit/FitManagerMinuit2.cpp