Sample.h

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// @(#)root/roostats:$Id$
// Author: George Lewis, Kyle Cranmer
/*************************************************************************
 * Copyright (C) 1995-2008, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
 
#ifndef HISTFACTORY_SAMPLE_H
#define HISTFACTORY_SAMPLE_H
 
#include <string>
#include <fstream>
#include <vector>
#include <iostream>
 
class TH1;
 
#include "RooStats/HistFactory/HistRef.h"
#include "RooStats/HistFactory/Systematics.h"
 
namespace RooStats{
namespace HistFactory {
 
class Sample {
 
 
public:
 
  Sample();
  Sample(std::string Name);
  Sample(const Sample& other);
  /// constructor from name, file and path. Name of the histogram should not include the path
  Sample(std::string Name, std::string HistoName, std::string InputFile, std::string HistoPath="");
  ~Sample();
 
  void Print(std::ostream& = std::cout);  
  void PrintXML( std::ofstream& xml );
  void writeToFile( std::string FileName, std::string DirName );
 
  TH1* GetHisto();
  // set histogram for this sample
  void SetHisto( TH1* histo ) { fhNominal = histo; fHistoName=histo->GetName(); }
  void SetValue( Double_t Val );
 
  // Some helper functions
  // Note that histogram name should not include the path of the histogram in the file.  
  // This has to be given separatly 
 
  void ActivateStatError();
  void ActivateStatError( std::string HistoName, std::string InputFile, std::string HistoPath="" );
 
  void AddOverallSys( std::string Name, Double_t Low, Double_t High );
  void AddOverallSys( const OverallSys& Sys );
 
  void AddNormFactor( std::string Name, Double_t Val, Double_t Low, Double_t High, bool Const=false );
  void AddNormFactor( const NormFactor& Factor );
 
  void AddHistoSys(    std::string Name, std::string HistoNameLow,  std::string HistoFileLow,  std::string HistoPathLow,
                               std::string HistoNameHigh, std::string HistoFileHigh, std::string HistoPathHigh );
  void AddHistoSys( const HistoSys& Sys );
 
  void AddHistoFactor( std::string Name, std::string HistoNameLow,  std::string HistoFileLow,  std::string HistoPathLow,  
             std::string HistoNameHigh, std::string HistoFileHigh, std::string HistoPathHigh );
  void AddHistoFactor( const HistoFactor& Factor );
 
  void AddShapeFactor( std::string Name );
  void AddShapeFactor( const ShapeFactor& Factor );
 
  void AddShapeSys(    std::string Name, Constraint::Type ConstraintType, std::string HistoName, std::string HistoFile, std::string HistoPath="" );
  void AddShapeSys( const ShapeSys& Sys );
 
  /// defines whether the normalization scale with luminosity
  void SetNormalizeByTheory( bool norm ) { fNormalizeByTheory = norm; }
  /// does the normalization scale with luminosity
  bool GetNormalizeByTheory() { return fNormalizeByTheory; }
 
 
  /// get name of sample
  std::string GetName() { return fName; }
  /// set name of sample
  void SetName(const std::string& Name) { fName = Name; }
 
  /// get input ROOT file
  std::string GetInputFile() { return fInputFile; }
  /// set input ROOT file
  void SetInputFile(const std::string& InputFile) { fInputFile = InputFile; }
 
  /// get histogram name
  std::string GetHistoName() { return fHistoName; }
  /// set histogram name
  void SetHistoName(const std::string& HistoName) { fHistoName = HistoName; }
 
  /// get histogram path
  std::string GetHistoPath() { return fHistoPath; }
  /// set histogram path
  void SetHistoPath(const std::string& HistoPath) { fHistoPath = HistoPath; }
 
  /// get name of associated channel
  std::string GetChannelName() { return fChannelName; }
  /// set name of associated channel
  void SetChannelName(const std::string& ChannelName) { fChannelName = ChannelName; }
 
 
 
  std::vector< RooStats::HistFactory::OverallSys >& GetOverallSysList() { return fOverallSysList; }
  std::vector< RooStats::HistFactory::NormFactor >& GetNormFactorList() { return fNormFactorList; }
 
  std::vector< RooStats::HistFactory::HistoSys >&    GetHistoSysList() {    return fHistoSysList; }
  std::vector< RooStats::HistFactory::HistoFactor >& GetHistoFactorList() { return fHistoFactorList; }
 
  std::vector< RooStats::HistFactory::ShapeSys >&    GetShapeSysList() {    return fShapeSysList; }
  std::vector< RooStats::HistFactory::ShapeFactor >& GetShapeFactorList() { return fShapeFactorList; }
 
  RooStats::HistFactory::StatError& GetStatError() { return fStatError; }
  void SetStatError( RooStats::HistFactory::StatError Error ) { fStatError = Error; }
 
 
protected:
 
  std::string fName;
  std::string fInputFile;
  std::string fHistoName;
  std::string fHistoPath;
 
  /// The Name of the parent channel
  std::string fChannelName;
 
  //
  // Systematics
  //
 
  std::vector< RooStats::HistFactory::OverallSys >  fOverallSysList;
  std::vector< RooStats::HistFactory::NormFactor >  fNormFactorList;
 
  std::vector< RooStats::HistFactory::HistoSys >    fHistoSysList;
  std::vector< RooStats::HistFactory::HistoFactor > fHistoFactorList;
 
  std::vector< RooStats::HistFactory::ShapeSys >    fShapeSysList;
  std::vector< RooStats::HistFactory::ShapeFactor > fShapeFactorList;
 
 
  /// Properties
  RooStats::HistFactory::StatError fStatError;
 
  bool fNormalizeByTheory;
  bool fStatErrorActivate;
 
 
  /// The Nominal Shape
  HistRef fhNominal;
  TH1* fhCountingHist;
 
};
 
 
} // namespace HistFactory
} // namespace RooStats
 
#endif