deep_tau::TauWPThreshold Class Reference

#include <DeepTauBase.h>

Public Member Functions
double	operator() (const pat::Tau &tau) const
	TauWPThreshold (const std::string &cut_str)

Private Attributes
std::unique_ptr< TF1 >	fn_
double	value_

Detailed Description

Definition at line 30 of file DeepTauBase.h.

Constructor & Destructor Documentation

deep_tau::TauWPThreshold::TauWPThreshold ( const std::string &  cut_str )

explicit

Definition at line 15 of file DeepTauBase.cc.

References fn_, createfilelist::int, tablePrinter::prefix, AlCaHLTBitMon_QueryRunRegistry::string, and value_.

{
    bool simple_value = false;
    try {
        size_t pos = 0;
        value_ = std::stod(cut_str, &pos);
        simple_value = (pos == cut_str.size());
    } catch(std::invalid_argument&) {
    } catch(std::out_of_range&) {
    }
    if(!simple_value) {
        static const std::string prefix = "[&](double *x, double *p) { const int decayMode = p[0];"
                                          "const double pt = p[1]; const double eta = p[2];";
        static const int n_params = 3;
        static const auto handler = [](int, Bool_t, const char*, const char*) -> void {};

        const std::string fn_str = prefix + cut_str + "}";
        auto old_handler = SetErrorHandler(handler);
        fn_ = std::make_unique<TF1>("fn_", fn_str.c_str(), 0, 1, n_params);
        SetErrorHandler(old_handler);
        if(!fn_->IsValid())
            throw cms::Exception("TauWPThreshold: invalid formula") << "Invalid WP cut formula = '" << cut_str << "'.";
    }
}

Member Function Documentation

double deep_tau::TauWPThreshold::operator()

(

const pat::Tau &

tau

)

const

Definition at line 40 of file DeepTauBase.cc.

References pat::Tau::decayMode(), reco::LeafCandidate::eta(), fn_, reco::LeafCandidate::pt(), and value_.

{
    if(!fn_)
        return value_;
    fn_->SetParameter(0, tau.decayMode());
    fn_->SetParameter(1, tau.pt());
    fn_->SetParameter(2, tau.eta());
    return fn_->Eval(0);
}

Member Data Documentation

std::unique_ptr<TF1> deep_tau::TauWPThreshold::fn_

private

Definition at line 36 of file DeepTauBase.h.

Referenced by operator()(), and TauWPThreshold().

double deep_tau::TauWPThreshold::value_

private

Definition at line 37 of file DeepTauBase.h.

Referenced by operator()(), and TauWPThreshold().