/***************************************************************************** * Project: RooFit * * Package: RooFitModels * * @(#)root/roofit:$Id: RooUnblindCPAsymVar.cxx 20878 2007-11-19 11:22:17Z rdm $ * Authors: * * WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu * * DK, David Kirkby, UC Irvine, dkirkby@uci.edu * * * * Copyright (c) 2000-2005, Regents of the University of California * * and Stanford University. All rights reserved. * * * * Redistribution and use in source and binary forms, * * with or without modification, are permitted according to the terms * * listed in LICENSE (http://roofit.sourceforge.net/license.txt) * *****************************************************************************/ // -- CLASS DESCRIPTION [REAL] -- // // Implementation of BlindTools' CP asymmetry blinding method // A RooUnblindCPAsymVar object is a real valued function // object, constructed from a blind value holder and a // set of unblinding parameters. When supplied to a PDF // in lieu of a regular parameter, the blind value holder // supplied to the unblinder objects will in a fit be minimized // to blind value corresponding to the actual minimum of the // parameter. The transformation is chosen such that the // the error on the blind parameters is indentical to that // of the unblind parameter #include "RooFit.h" #include "RooArgSet.h" #include "RooArgSet.h" #include "RooUnblindCPAsymVar.h" ClassImp(RooUnblindCPAsymVar) ; RooUnblindCPAsymVar::RooUnblindCPAsymVar() : _blindEngine("") { // Default constructor } RooUnblindCPAsymVar::RooUnblindCPAsymVar(const char *name, const char *title, const char *blindString, RooAbsReal& cpasym) : RooAbsHiddenReal(name,title), _asym("asym","CP Asymmetry",this,cpasym), _blindEngine(blindString) { // Constructor from a given RooAbsReal (to hold the blind value) and a set of blinding parameters } RooUnblindCPAsymVar::RooUnblindCPAsymVar(const char *name, const char *title, const char *blindString, RooAbsReal& cpasym, RooAbsCategory& blindState) : RooAbsHiddenReal(name,title,blindState), _asym("asym","CP Asymmetry",this,cpasym), _blindEngine(blindString) { // Constructor from a given RooAbsReal (to hold the blind value) and a set of blinding parameters } RooUnblindCPAsymVar::RooUnblindCPAsymVar(const RooUnblindCPAsymVar& other, const char* name) : RooAbsHiddenReal(other, name), _asym("asym",this,other._asym), _blindEngine(other._blindEngine) { // Copy constructor } RooUnblindCPAsymVar::~RooUnblindCPAsymVar() { // Copy constructor } Double_t RooUnblindCPAsymVar::evaluate() const { if (isHidden()) { // Blinding active for this event return _blindEngine.UnHideAsym(_asym); } else { // Blinding not active for this event return _asym ; } }