ana::UniverseWeight Class Reference

#include <SBNWeightSysts.h>

Public Member Functions
	UniverseWeight (const std::string &psetName, int univIdx)
double	operator() (const caf::SRSliceProxy *sr) const

Protected Attributes
std::string	fPSetName
int	fPSetIdx
int	fUnivIdx

Detailed Description

Definition at line 14 of file SBNWeightSysts.h.

Constructor & Destructor Documentation

ana::UniverseWeight::UniverseWeight	(	const std::string &	psetName,
		int	univIdx
	)

Definition at line 15 of file SBNWeightSysts.cxx.

    : fPSetName(psetName), fPSetIdx(-1), fUnivIdx(univIdx)
  {
  }

Member Function Documentation

double ana::UniverseWeight::operator()

(

const caf::SRSliceProxy *

sr

)

const

Definition at line 21 of file SBNWeightSysts.cxx.

  {
    if(sr->truth.index < 0) return 1;

    if(fPSetIdx == -1){
      const UniverseOracle& uo = UniverseOracle::Instance();
      fPSetIdx = uo.ParameterSetIndex(fPSetName);
    }

    const caf::Proxy<std::vector<caf::SRMultiverse>>& wgts = sr->truth.wgt;
    if(wgts.empty()) return 1;

    const int Nwgts = wgts[fPSetIdx].univ.size();

    static bool once = true;
    if(!once && fUnivIdx >= Nwgts){
      once = false;
      std::cout << "UniverseWeight: WARNING requesting universe " << fUnivIdx << " in parameter set " << fPSetName << " which only has size " << Nwgts << ". Will wrap-around and suppress future warnings." << std::endl;
    }

    const unsigned int unividx = fUnivIdx % Nwgts;

    return wgts[fPSetIdx].univ[unividx];
  }

Member Data Documentation

int ana::UniverseWeight::fPSetIdx

mutableprotected

Definition at line 23 of file SBNWeightSysts.h.

std::string ana::UniverseWeight::fPSetName

protected

Definition at line 22 of file SBNWeightSysts.h.

int ana::UniverseWeight::fUnivIdx

protected

Definition at line 24 of file SBNWeightSysts.h.

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

• SBNWeightSysts.h
• SBNWeightSysts.cxx