FitPrintService Class Reference

Collaboration diagram for FitPrintService:

Public Member Functions
	FitPrintService ()
void	print (const FitObjective &objective)

Private Member Functions
std::string	iterationHeaderString (const FitObjective &objective)
std::string	wallTimeString ()
std::string	parameterString (const FitObjective &objective)
std::string	fitResultString (const FitObjective &objective)

Private Attributes
WallclockTimer	m_run_time
WallclockTimer	m_last_call_time

Detailed Description

Prints fit statistics to standard output during minimizer iterations.

Definition at line 25 of file FitPrintService.h.

Constructor & Destructor Documentation

FitPrintService()

FitPrintService::FitPrintService ( )

default

Member Function Documentation

print()

void FitPrintService::print

(

const FitObjective &

objective

)

Definition at line 39 of file FitPrintService.cpp.

{
    std::ostringstream ostr;
 
    if (objective.isFirstIteration()) {
        m_run_time.start();
        m_last_call_time.start();
    }
 
    ostr << iterationHeaderString(objective);
    ostr << wallTimeString();
    ostr << parameterString(objective);
 
    if (objective.isCompleted())
        ostr << fitResultString(objective);
 
    std::cout << ostr.str() << "\n";
}

References fitResultString(), FitObjective::isCompleted(), FitObjective::isFirstIteration(), iterationHeaderString(), m_last_call_time, m_run_time, parameterString(), WallclockTimer::start(), and wallTimeString().

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iterationHeaderString()

std::string FitPrintService::iterationHeaderString ( const FitObjective &  objective )

private

Definition at line 58 of file FitPrintService.cpp.

{
    std::ostringstream result;
 
    result << "FitPrintService::update() -> Info."
           << " NCall:" << objective.iterationInfo().iterationCount() << " Chi2:" << std::scientific
           << std::setprecision(8) << objective.iterationInfo().chi2() << "\n";
 
    return result.str();
}

References IterationInfo::chi2(), IterationInfo::iterationCount(), FitObjective::iterationInfo(), and StringUtils::scientific().

Referenced by print().

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wallTimeString()

std::string FitPrintService::wallTimeString ( )

private

Definition at line 69 of file FitPrintService.cpp.

{
    std::ostringstream result;
 
    m_last_call_time.stop();
    result << "Wall time since last call:" << std::fixed << std::setprecision(2)
           << m_last_call_time.runTime() << "\n";
    m_last_call_time.start();
 
    return result.str();
}

References m_last_call_time, WallclockTimer::runTime(), WallclockTimer::start(), and WallclockTimer::stop().

Referenced by print().

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parameterString()

std::string FitPrintService::parameterString ( const FitObjective &  objective )

private

Definition at line 81 of file FitPrintService.cpp.

{
    std::ostringstream result;
 
    const auto params = objective.iterationInfo().parameters();
    const auto length = length_of_longest_name(params);
 
    for (const auto& par : params) {
        result << StringUtils::padRight(par.name(), length) << std::scientific
               << std::setprecision(6) << "  " << par.startValue() << " " << par.limits().toString()
               << "  " << par.value() << "\n";
    }
 
    return result.str();
}

References FitObjective::iterationInfo(), anonymous_namespace{BoxCompositionBuilder.cpp}::length, anonymous_namespace{FitPrintService.cpp}::length_of_longest_name(), StringUtils::padRight(), IterationInfo::parameters(), and StringUtils::scientific().

Referenced by print().

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fitResultString()

std::string FitPrintService::fitResultString ( const FitObjective &  objective )

private

Definition at line 97 of file FitPrintService.cpp.

{
    std::ostringstream result;
 
    m_run_time.stop();
 
    result << "This was the last iteration." << std::endl;
    result << "Total time spend: " << std::fixed << std::setprecision(2) << m_run_time.runTime()
           << " sec."
           << "\n\n";
 
    result << objective.minimizerResult().toString();
    return result.str();
}

References m_run_time, FitObjective::minimizerResult(), WallclockTimer::runTime(), WallclockTimer::stop(), and Fit::MinimizerResult::toString().

Referenced by print().

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Member Data Documentation

m_run_time

WallclockTimer FitPrintService::m_run_time

private

Definition at line 38 of file FitPrintService.h.

Referenced by fitResultString(), and print().

m_last_call_time

WallclockTimer FitPrintService::m_last_call_time

private

Definition at line 39 of file FitPrintService.h.

Referenced by print(), and wallTimeString().

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

• /home/www/ba/Core/Fitting/FitPrintService.h
• /home/www/ba/Core/Fitting/FitPrintService.cpp