ROOT_528-00b_version: include/RooChi2Var.h Source File

00001 /*****************************************************************************
00002  * Project: RooFit                                                           *
00003  * Package: RooFitCore                                                       *
00004  *    File: $Id: RooChi2Var.h,v 1.12 2007/05/11 09:11:30 verkerke Exp $
00005  * Authors:                                                                  *
00006  *   WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu       *
00007  *   DK, David Kirkby,    UC Irvine,         dkirkby@uci.edu                 *
00008  *                                                                           *
00009  * Copyright (c) 2000-2005, Regents of the University of California          *
00010  *                          and Stanford University. All rights reserved.    *
00011  *                                                                           *
00012  * Redistribution and use in source and binary forms,                        *
00013  * with or without modification, are permitted according to the terms        *
00014  * listed in LICENSE (http://roofit.sourceforge.net/license.txt)             *
00015  *****************************************************************************/
00016 
00017 #ifndef ROO_CHI2_VAR
00018 #define ROO_CHI2_VAR
00019 
00020 #include "RooAbsOptTestStatistic.h"
00021 #include "RooCmdArg.h"
00022 #include "RooDataHist.h"
00023 #include "RooAbsPdf.h"
00024 
00025 class RooChi2Var : public RooAbsOptTestStatistic {
00026 public:
00027 
00028   // Constructors, assignment etc
00029   RooChi2Var(const char *name, const char* title, RooAbsReal& func, RooDataHist& data,
00030              const RooCmdArg& arg1                , const RooCmdArg& arg2=RooCmdArg::none(),const RooCmdArg& arg3=RooCmdArg::none(),
00031              const RooCmdArg& arg4=RooCmdArg::none(), const RooCmdArg& arg5=RooCmdArg::none(),const RooCmdArg& arg6=RooCmdArg::none(),
00032              const RooCmdArg& arg7=RooCmdArg::none(), const RooCmdArg& arg8=RooCmdArg::none(),const RooCmdArg& arg9=RooCmdArg::none()) ;
00033 
00034   RooChi2Var(const char *name, const char* title, RooAbsPdf& pdf, RooDataHist& data,
00035              const RooCmdArg& arg1                , const RooCmdArg& arg2=RooCmdArg::none(),const RooCmdArg& arg3=RooCmdArg::none(),
00036              const RooCmdArg& arg4=RooCmdArg::none(), const RooCmdArg& arg5=RooCmdArg::none(),const RooCmdArg& arg6=RooCmdArg::none(),
00037              const RooCmdArg& arg7=RooCmdArg::none(), const RooCmdArg& arg8=RooCmdArg::none(),const RooCmdArg& arg9=RooCmdArg::none()) ;
00038 
00039   enum FuncMode { Function, Pdf, ExtendedPdf } ;
00040 
00041   RooChi2Var(const char *name, const char *title, RooAbsPdf& pdf, RooDataHist& data,
00042             Bool_t extended=kFALSE, const char* rangeName=0, const char* addCoefRangeName=0, 
00043              Int_t nCPU=1, Bool_t interleave=kFALSE, Bool_t verbose=kTRUE, Bool_t splitCutRange=kTRUE, RooDataHist::ErrorType=RooDataHist::SumW2) ;
00044 
00045   RooChi2Var(const char *name, const char *title, RooAbsReal& func, RooDataHist& data,
00046              const RooArgSet& projDeps, FuncMode funcMode, const char* rangeName=0, const char* addCoefRangeName=0, 
00047              Int_t nCPU=1, Bool_t interleave=kFALSE, Bool_t verbose=kTRUE, Bool_t splitCutRange=kTRUE, RooDataHist::ErrorType=RooDataHist::SumW2) ;
00048 
00049   RooChi2Var(const RooChi2Var& other, const char* name=0);
00050   virtual TObject* clone(const char* newname) const { return new RooChi2Var(*this,newname); }
00051 
00052   virtual RooAbsTestStatistic* create(const char *name, const char *title, RooAbsReal& pdf, RooAbsData& dhist,
00053                                       const RooArgSet& projDeps, const char* rangeName=0, const char* addCoefRangeName=0, 
00054                                       Int_t nCPU=1, Bool_t interleave=kFALSE,Bool_t verbose=kTRUE, Bool_t splitCutRange=kTRUE) {
00055     // Virtual constructor
00056     return new RooChi2Var(name,title,(RooAbsPdf&)pdf,(RooDataHist&)dhist,projDeps,_funcMode,rangeName,
00057                           addCoefRangeName,nCPU,interleave,verbose, splitCutRange,_etype) ;
00058   }
00059   
00060   virtual ~RooChi2Var();
00061 
00062   virtual Double_t defaultErrorLevel() const { 
00063     // The default error level for MINUIT error analysis for a chi^2 is 1.0
00064     return 1.0 ; 
00065   }
00066 
00067 protected:
00068 
00069   static RooArgSet _emptySet ;        // Supports named argument constructor
00070  
00071   RooDataHist::ErrorType _etype ;     // Error type store in associated RooDataHist
00072   FuncMode _funcMode ;                // Function, P.d.f. or extended p.d.f?
00073 
00074   virtual Double_t evaluatePartition(Int_t firstEvent, Int_t lastEvent, Int_t stepSize) const ;
00075   
00076   ClassDef(RooChi2Var,1) // Chi^2 function of p.d.f w.r.t a binned dataset
00077 };
00078 
00079 
00080 #endif