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class RooStats::SPlot: public TNamed


This class calculates sWeights used to create an sPlot. The code is based on ``SPlot: A statistical tool to unfold data distributions,'' Nucl. Instrum. Meth. A 555, 356 (2005) [arXiv:physics/0402083]. An SPlot gives us the distribution of some variable, x in our data sample for a given species (eg. signal or background). The result is similar to a likelihood projection plot, but no cuts are made, so every event contributes to the distribution. [Usage] To use this class, you first must have a pdf that includes yields for (possibly several) different species. Create an instance of the class by supplying a data set, the pdf, and a list of the yield variables. The SPlot Class will calculate SWeights and include these as columns in the RooDataSet.

Function Members (Methods)

public:
virtual~SPlot()
voidTObject::AbstractMethod(const char* method) const
voidAddSWeight(RooAbsPdf* pdf, const RooArgList& yieldsTmp, const RooArgSet& projDeps = RooArgSet(), bool includeWeights = kTRUE)
virtual voidTObject::AppendPad(Option_t* option = "")
virtual voidTObject::Browse(TBrowser* b)
static TClass*Class()
virtual const char*TObject::ClassName() const
virtual voidTNamed::Clear(Option_t* option = "")
virtual TObject*TNamed::Clone(const char* newname = "") const
virtual Int_tTNamed::Compare(const TObject* obj) const
virtual voidTNamed::Copy(TObject& named) const
virtual voidTObject::Delete(Option_t* option = "")MENU
virtual Int_tTObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual voidTObject::Draw(Option_t* option = "")
virtual voidTObject::DrawClass() constMENU
virtual TObject*TObject::DrawClone(Option_t* option = "") constMENU
virtual voidTObject::Dump() constMENU
virtual voidTObject::Error(const char* method, const char* msgfmt) const
virtual voidTObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual voidTObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual voidTObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual voidTObject::Fatal(const char* method, const char* msgfmt) const
virtual voidTNamed::FillBuffer(char*& buffer)
virtual TObject*TObject::FindObject(const char* name) const
virtual TObject*TObject::FindObject(const TObject* obj) const
virtual Option_t*TObject::GetDrawOption() const
static Long_tTObject::GetDtorOnly()
virtual const char*TObject::GetIconName() const
virtual const char*TNamed::GetName() const
Int_tGetNumSWeightVars() const
virtual char*TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_tTObject::GetObjectStat()
virtual Option_t*TObject::GetOption() const
RooDataSet*GetSDataSet() const
Double_tGetSumOfEventSWeight(Int_t numEvent) const
Double_tGetSWeight(Int_t numEvent, const char* sVariable) const
RooArgListGetSWeightVars() const
virtual const char*TNamed::GetTitle() const
virtual UInt_tTObject::GetUniqueID() const
Double_tGetYieldFromSWeight(const char* sVariable) const
virtual Bool_tTObject::HandleTimer(TTimer* timer)
virtual ULong_tTNamed::Hash() const
virtual voidTObject::Info(const char* method, const char* msgfmt) const
virtual Bool_tTObject::InheritsFrom(const char* classname) const
virtual Bool_tTObject::InheritsFrom(const TClass* cl) const
virtual voidTObject::Inspect() constMENU
voidTObject::InvertBit(UInt_t f)
virtual TClass*IsA() const
virtual Bool_tTObject::IsEqual(const TObject* obj) const
virtual Bool_tTObject::IsFolder() const
Bool_tTObject::IsOnHeap() const
virtual Bool_tTNamed::IsSortable() const
Bool_tTObject::IsZombie() const
virtual voidTNamed::ls(Option_t* option = "") const
voidTObject::MayNotUse(const char* method) const
virtual Bool_tTObject::Notify()
voidTObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
static voidTObject::operator delete(void* ptr)
static voidTObject::operator delete(void* ptr, void* vp)
static voidTObject::operator delete[](void* ptr)
static voidTObject::operator delete[](void* ptr, void* vp)
void*TObject::operator new(size_t sz)
void*TObject::operator new(size_t sz, void* vp)
void*TObject::operator new[](size_t sz)
void*TObject::operator new[](size_t sz, void* vp)
RooStats::SPlot&operator=(const RooStats::SPlot&)
virtual voidTObject::Paint(Option_t* option = "")
virtual voidTObject::Pop()
virtual voidTNamed::Print(Option_t* option = "") const
virtual Int_tTObject::Read(const char* name)
virtual voidTObject::RecursiveRemove(TObject* obj)
voidTObject::ResetBit(UInt_t f)
virtual voidTObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual voidTObject::SavePrimitive(ostream& out, Option_t* option = "")
voidTObject::SetBit(UInt_t f)
voidTObject::SetBit(UInt_t f, Bool_t set)
virtual voidTObject::SetDrawOption(Option_t* option = "")MENU
static voidTObject::SetDtorOnly(void* obj)
virtual voidTNamed::SetName(const char* name)MENU
virtual voidTNamed::SetNameTitle(const char* name, const char* title)
static voidTObject::SetObjectStat(Bool_t stat)
RooDataSet*SetSData(RooDataSet* data)
virtual voidTNamed::SetTitle(const char* title = "")MENU
virtual voidTObject::SetUniqueID(UInt_t uid)
virtual voidShowMembers(TMemberInspector& insp)
virtual Int_tTNamed::Sizeof() const
RooStats::SPlotSPlot()
RooStats::SPlotSPlot(const RooStats::SPlot& other)
RooStats::SPlotSPlot(const char* name, const char* title)
RooStats::SPlotSPlot(const char* name, const char* title, const RooDataSet& data)
RooStats::SPlotSPlot(const char* name, const char* title, RooDataSet& data, RooAbsPdf* pdf, const RooArgList& yieldsList, const RooArgSet& projDeps = RooArgSet(), bool includeWeights = kTRUE, bool copyDataSet = kFALSE, const char* newName = "")
virtual voidStreamer(TBuffer& b)
voidStreamerNVirtual(TBuffer& b)
virtual voidTObject::SysError(const char* method, const char* msgfmt) const
Bool_tTObject::TestBit(UInt_t f) const
Int_tTObject::TestBits(UInt_t f) const
virtual voidTObject::UseCurrentStyle()
virtual voidTObject::Warning(const char* method, const char* msgfmt) const
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const
protected:
virtual voidTObject::DoError(int level, const char* location, const char* fmt, va_list va) const
voidTObject::MakeZombie()

Data Members

protected:
TStringTNamed::fNameobject identifier
RooDataSet*fSData
RooArgListfSWeightVars
TStringTNamed::fTitleobject title

Class Charts

Inheritance Inherited Members Includes Libraries
Class Charts

Function documentation

~SPlot()
SPlot()
 Default constructor
SPlot(const char* name, const char* title)
SPlot(const char* name, const char* title, const RooDataSet& data)
Constructor from a RooDataSet
No sWeighted variables are present
SPlot(const RooStats::SPlot& other)
 Copy Constructor from another SPlot
SPlot(const char* name, const char* title, RooDataSet& data, RooAbsPdf* pdf, const RooArgList& yieldsList, const RooArgSet& projDeps = RooArgSet(), bool includeWeights = kTRUE, bool copyDataSet = kFALSE, const char* newName = "")
RooDataSet* SetSData(RooDataSet* data)
RooDataSet* GetSDataSet() const
Double_t GetSWeight(Int_t numEvent, const char* sVariable) const
Double_t GetSumOfEventSWeight(Int_t numEvent) const
Double_t GetYieldFromSWeight(const char* sVariable) const
RooArgList GetSWeightVars() const
Int_t GetNumSWeightVars() const
Return the number of SWeights
In other words, return the number of
species that we are trying to extract.
void AddSWeight(RooAbsPdf* pdf, const RooArgList& yieldsTmp, const RooArgSet& projDeps = RooArgSet(), bool includeWeights = kTRUE)