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Reference Guide
RooFitResult Class Reference

RooFitResult is a container class to hold the input and output of a PDF fit to a dataset. It contains:

  • Values of all constant parameters
  • Initial and final values of floating parameters with error
  • Correlation matrix and global correlation coefficients
  • NLL and EDM at mininum

No references to the fitted PDF and dataset are stored

Definition at line 40 of file RooFitResult.h.

Public Member Functions

 RooFitResult (const char *name=0, const char *title=0)
 Constructor with name and title. More...
 
 RooFitResult (const RooFitResult &other)
 Copy constructor. More...
 
virtual ~RooFitResult ()
 Destructor. More...
 
virtual TObjectclone () const
 
virtual TObjectClone (const char *newname=0) const
 Make a clone of an object using the Streamer facility. More...
 
TMatrixDSym conditionalCovarianceMatrix (const RooArgList &params) const
 Return a reduced covariance matrix, which is calculated as. More...
 
const RooArgListconstPars () const
 
const RooArgListcorrelation (const char *parname) const
 Return the set of correlation coefficients of parameter 'par' with all other floating parameters. More...
 
Double_t correlation (const char *parname1, const char *parname2) const
 Return the correlation between parameters 'par1' and 'par2'. More...
 
const RooArgListcorrelation (const RooAbsArg &par) const
 
Double_t correlation (const RooAbsArg &par1, const RooAbsArg &par2) const
 
TH2correlationHist (const char *name="correlation_matrix") const
 Return TH2D of correlation matrix. More...
 
const TMatrixDSymcorrelationMatrix () const
 Return correlation matrix ;. More...
 
const TMatrixDSymcovarianceMatrix () const
 Return covariance matrix. More...
 
Int_t covQual () const
 
RooAbsPdfcreateHessePdf (const RooArgSet &params) const
 Return a p.d.f that represents the fit result as a multi-variate probability densisty function on the floating fit parameters, including correlations. More...
 
virtual Int_t defaultPrintContents (Option_t *opt) const
 Configure default contents to be printed. More...
 
virtual StyleOption defaultPrintStyle (Option_t *opt) const
 Configure mapping of Print() arguments to RooPrintable print styles. More...
 
Double_t edm () const
 
const RooArgListfloatParsFinal () const
 
const RooArgListfloatParsInit () const
 
const RooArgListglobalCorr ()
 Return the list of all global correlations. More...
 
Double_t globalCorr (const char *parname)
 Return the global correlation of the named parameter. More...
 
Double_t globalCorr (const RooAbsArg &par)
 
Bool_t isIdentical (const RooFitResult &other, Double_t tol=1e-6, Double_t tolCorr=1e-4, Bool_t verbose=kTRUE) const
 Return true if this fit result is identical to other within tolerances. More...
 
Double_t minNll () const
 
Int_t numInvalidNLL () const
 
UInt_t numStatusHistory () const
 
RooPlotplotOn (RooPlot *frame, const RooAbsArg &par1, const RooAbsArg &par2, const char *options="ME") const
 
RooPlotplotOn (RooPlot *plot, const char *parName1, const char *parName2, const char *options="ME") const
 Add objects to a 2D plot that represent the fit results for the two named parameters. More...
 
virtual void Print (Option_t *options=0) const
 Print TNamed name and title. More...
 
virtual void printArgs (std::ostream &os) const
 Print arguments of fit result, i.e. the parameters of the fit. More...
 
virtual void printClassName (std::ostream &os) const
 Print class name of fit result. More...
 
void printMultiline (std::ostream &os, Int_t contents, Bool_t verbose=kFALSE, TString indent="") const
 Print fit result to stream 'os'. More...
 
virtual void printName (std::ostream &os) const
 Print name of fit result. More...
 
virtual void printTitle (std::ostream &os) const
 Print title of fit result. More...
 
virtual void printValue (std::ostream &os) const
 Print the value of the fit result, i.e.g the status, minimized FCN, edm and covariance quality code. More...
 
const RooArgListrandomizePars () const
 Return a list of floating parameter values that are perturbed from the final fit values by random amounts sampled from the covariance matrix. More...
 
TMatrixDSym reducedCovarianceMatrix (const RooArgList &params) const
 Return a reduced covariance matrix (Note that Vred is a simple sub-matrix of V, row/columns are ordered to matched the convention given in input argument 'params'. More...
 
void SetName (const char *name)
 Change name of RooFitResult object. More...
 
void SetNameTitle (const char *name, const char *title)
 Change name and title of RooFitResult object. More...
 
Int_t status () const
 
Int_t statusCodeHistory (UInt_t icycle) const
 
const char * statusLabelHistory (UInt_t icycle) const
 
- Public Member Functions inherited from TNamed
 TNamed ()
 
 TNamed (const char *name, const char *title)
 
 TNamed (const TNamed &named)
 TNamed copy ctor. More...
 
 TNamed (const TString &name, const TString &title)
 
virtual ~TNamed ()
 TNamed destructor. More...
 
virtual void Clear (Option_t *option="")
 Set name and title to empty strings (""). More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare two TNamed objects. More...
 
virtual void Copy (TObject &named) const
 Copy this to obj. More...
 
virtual void FillBuffer (char *&buffer)
 Encode TNamed into output buffer. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
virtual Bool_t IsSortable () const
 
virtual void ls (Option_t *option="") const
 List TNamed name and title. More...
 
TNamedoperator= (const TNamed &rhs)
 TNamed assignment operator. More...
 
virtual void SetTitle (const char *title="")
 Set the title of the TNamed. More...
 
virtual Int_t Sizeof () const
 Return size of the TNamed part of the TObject. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
ULong_t CheckedHash ()
 Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Option_tGetOption () const
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
void InvertBit (UInt_t f)
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
void ResetBit (UInt_t f)
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
 
void SetBit (UInt_t f)
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 
- Public Member Functions inherited from RooPrintable
 RooPrintable ()
 
virtual ~RooPrintable ()
 
virtual void printAddress (std::ostream &os) const
 Print class name of object. More...
 
virtual void printExtras (std::ostream &os) const
 Interface to print extras of object. More...
 
virtual void printStream (std::ostream &os, Int_t contents, StyleOption style, TString indent="") const
 Print description of object on ostream, printing contents set by contents integer, which is interpreted as an OR of 'enum ContentsOptions' values and in the style given by 'enum StyleOption'. More...
 
virtual void printTree (std::ostream &os, TString indent="") const
 Interface for tree structure printing of object. More...
 
- Public Member Functions inherited from RooDirItem
 RooDirItem ()
 
 RooDirItem (const RooDirItem &)
 
virtual ~RooDirItem ()
 

Static Public Member Functions

static RooFitResultlastMinuitFit (const RooArgList &varList=RooArgList())
 Import the results of the last fit performed by gMinuit, interpreting the fit parameters as the given varList of parameters. More...
 
static RooFitResultprefitResult (const RooArgList &paramList)
 Import the results of the last fit performed by gMinuit, interpreting the fit parameters as the given varList of parameters. More...
 
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 
- Static Public Member Functions inherited from RooPrintable
static std::ostream & defaultPrintStream (std::ostream *os=0)
 Return a reference to the current default stream to use in Print(). More...
 
static void nameFieldLength (Int_t newLen)
 Set length of field reserved from printing name of RooAbsArgs in multi-line collection printing to given amount. More...
 

Protected Member Functions

Double_t correlation (Int_t row, Int_t col) const
 Return a correlation matrix element addressed with numeric indices. More...
 
Double_t covariance (Int_t row, Int_t col) const
 Return the covariance matrix element addressed with numeric indices. More...
 
void fillCorrMatrix ()
 Internal utility method to extract the correlation matrix and the global correlation coefficients from the MINUIT memory buffer and fill the internal arrays. More...
 
void fillCorrMatrix (const std::vector< double > &globalCC, const TMatrixDSym &corrs, const TMatrixDSym &covs)
 Function called by RooMinimizer. More...
 
void fillLegacyCorrMatrix () const
 Sanity check. More...
 
void fillPrefitCorrMatrix ()
 
void setConstParList (const RooArgList &list)
 Fill the list of constant parameters. More...
 
void setCovarianceMatrix (TMatrixDSym &V)
 Store externally provided correlation matrix in this RooFitResult ;. More...
 
void setCovQual (Int_t val)
 
void setEDM (Double_t val)
 
void setFinalParList (const RooArgList &list)
 Fill the list of final values of the floating parameters. More...
 
void setInitParList (const RooArgList &list)
 Fill the list of initial values of the floating parameters. More...
 
void setMinNLL (Double_t val)
 
void setNumInvalidNLL (Int_t val)
 
void setStatus (Int_t val)
 
void setStatusHistory (std::vector< std::pair< std::string, int > > &hist)
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 
void MakeZombie ()
 
- Protected Member Functions inherited from RooDirItem
void appendToDir (TObject *obj, Bool_t forceMemoryResident=kFALSE)
 Append object to directory. More...
 
void removeFromDir (TObject *obj)
 Remove object from directory it was added to. More...
 

Protected Attributes

TMatrixDSym_CM
 triangular matrix used for generate random perturbations More...
 
RooArgList_constPars
 
TList _corrMatrix
 List of global correlation coefficients. More...
 
Int_t _covQual
 
Double_t _edm
 
RooArgList_finalPars
 
TVectorD_GC
 
RooArgList_globalCorr
 
RooArgList_initPars
 
TMatrixF_Lt
 List of floating parameters with most recent random perturbation applied. More...
 
Double_t _minNLL
 
Int_t _numBadNLL
 
RooArgList_randomPars
 Correlation matrix (list of RooArgLists) More...
 
Int_t _status
 
std::vector< std::pair< std::string, int > > _statusHistory
 
TMatrixDSym_VM
 
- Protected Attributes inherited from TNamed
TString fName
 
TString fTitle
 
- Protected Attributes inherited from RooDirItem
TDirectory_dir {nullptr}
 

Friends

class RooMinimizer
 
class RooMinuit
 

Additional Inherited Members

- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kInconsistent = 0x08000000,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5),
  kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- Public Types inherited from RooPrintable
enum  ContentsOption {
  kName =1, kClassName =2, kValue =4, kArgs =8,
  kExtras =16, kAddress =32, kTitle =64, kCollectionHeader =128
}
 
enum  StyleOption {
  kInline =1, kSingleLine =2, kStandard =3, kVerbose =4,
  kTreeStructure =5
}
 
- Static Protected Attributes inherited from RooPrintable
static Int_t _nameLength
 

#include <RooFitResult.h>

Inheritance diagram for RooFitResult:
[legend]

Constructor & Destructor Documentation

◆ RooFitResult() [1/2]

RooFitResult::RooFitResult ( const char *  name = 0,
const char *  title = 0 
)

Constructor with name and title.

Definition at line 69 of file RooFitResult.cxx.

◆ RooFitResult() [2/2]

RooFitResult::RooFitResult ( const RooFitResult other)

Copy constructor.

Definition at line 80 of file RooFitResult.cxx.

◆ ~RooFitResult()

RooFitResult::~RooFitResult ( )
virtual

Destructor.

Definition at line 115 of file RooFitResult.cxx.

Member Function Documentation

◆ clone()

virtual TObject* RooFitResult::clone ( ) const
inlinevirtual

Definition at line 51 of file RooFitResult.h.

◆ Clone()

virtual TObject* RooFitResult::Clone ( const char *  newname = 0) const
inlinevirtual

Make a clone of an object using the Streamer facility.

If newname is specified, this will be the name of the new object.

Reimplemented from TNamed.

Definition at line 46 of file RooFitResult.h.

◆ conditionalCovarianceMatrix()

TMatrixDSym RooFitResult::conditionalCovarianceMatrix ( const RooArgList params) const

Return a reduced covariance matrix, which is calculated as.

\[ V_\mathrm{red} = \bar{V_{22}} = V_{11} - V_{12} \cdot V_{22}^{-1} \cdot V_{21}, \]

where \( V_{11},V_{12},V_{21},V_{22} \) represent a block decomposition of the covariance matrix into observables that are propagated (labeled by index '1') and that are not propagated (labeled by index '2'), and \( \bar{V_{22}} \) is the Shur complement of \( V_{22} \), calculated as shown above.

(Note that \( V_\mathrm{red} \) is not a simple sub-matrix of \( V \))

Definition at line 1169 of file RooFitResult.cxx.

◆ constPars()

const RooArgList& RooFitResult::constPars ( ) const
inline

Definition at line 102 of file RooFitResult.h.

◆ correlation() [1/5]

const RooArgList * RooFitResult::correlation ( const char *  parname) const

Return the set of correlation coefficients of parameter 'par' with all other floating parameters.

Definition at line 423 of file RooFitResult.cxx.

◆ correlation() [2/5]

Double_t RooFitResult::correlation ( const char *  parname1,
const char *  parname2 
) const

Return the correlation between parameters 'par1' and 'par2'.

Definition at line 402 of file RooFitResult.cxx.

◆ correlation() [3/5]

const RooArgList* RooFitResult::correlation ( const RooAbsArg par) const
inline

Definition at line 121 of file RooFitResult.h.

◆ correlation() [4/5]

Double_t RooFitResult::correlation ( const RooAbsArg par1,
const RooAbsArg par2 
) const
inline

Definition at line 117 of file RooFitResult.h.

◆ correlation() [5/5]

Double_t RooFitResult::correlation ( Int_t  row,
Int_t  col 
) const
protected

Return a correlation matrix element addressed with numeric indices.

Definition at line 480 of file RooFitResult.cxx.

◆ correlationHist()

TH2 * RooFitResult::correlationHist ( const char *  name = "correlation_matrix") const

Return TH2D of correlation matrix.

Definition at line 1082 of file RooFitResult.cxx.

◆ correlationMatrix()

const TMatrixDSym & RooFitResult::correlationMatrix ( ) const

Return correlation matrix ;.

Definition at line 1250 of file RooFitResult.cxx.

◆ covariance()

Double_t RooFitResult::covariance ( Int_t  row,
Int_t  col 
) const
protected

Return the covariance matrix element addressed with numeric indices.

Definition at line 489 of file RooFitResult.cxx.

◆ covarianceMatrix()

const TMatrixDSym & RooFitResult::covarianceMatrix ( ) const

Return covariance matrix.

Definition at line 1108 of file RooFitResult.cxx.

◆ covQual()

Int_t RooFitResult::covQual ( ) const
inline

Definition at line 86 of file RooFitResult.h.

◆ createHessePdf()

RooAbsPdf * RooFitResult::createHessePdf ( const RooArgSet params) const

Return a p.d.f that represents the fit result as a multi-variate probability densisty function on the floating fit parameters, including correlations.

Definition at line 1261 of file RooFitResult.cxx.

◆ defaultPrintContents()

Int_t RooFitResult::defaultPrintContents ( Option_t opt) const
virtual

Configure default contents to be printed.

Reimplemented from RooPrintable.

Definition at line 1440 of file RooFitResult.cxx.

◆ defaultPrintStyle()

RooPrintable::StyleOption RooFitResult::defaultPrintStyle ( Option_t opt) const
virtual

Configure mapping of Print() arguments to RooPrintable print styles.

Reimplemented from RooPrintable.

Definition at line 1449 of file RooFitResult.cxx.

◆ edm()

Double_t RooFitResult::edm ( ) const
inline

Definition at line 94 of file RooFitResult.h.

◆ fillCorrMatrix() [1/2]

void RooFitResult::fillCorrMatrix ( )
protected

Internal utility method to extract the correlation matrix and the global correlation coefficients from the MINUIT memory buffer and fill the internal arrays.

Definition at line 714 of file RooFitResult.cxx.

◆ fillCorrMatrix() [2/2]

void RooFitResult::fillCorrMatrix ( const std::vector< double > &  globalCC,
const TMatrixDSym corrs,
const TMatrixDSym covs 
)
protected

Function called by RooMinimizer.

Definition at line 596 of file RooFitResult.cxx.

◆ fillLegacyCorrMatrix()

void RooFitResult::fillLegacyCorrMatrix ( ) const
protected

Sanity check.

Definition at line 631 of file RooFitResult.cxx.

◆ fillPrefitCorrMatrix()

void RooFitResult::fillPrefitCorrMatrix ( )
protected

Definition at line 770 of file RooFitResult.cxx.

◆ floatParsFinal()

const RooArgList& RooFitResult::floatParsFinal ( ) const
inline

Definition at line 110 of file RooFitResult.h.

◆ floatParsInit()

const RooArgList& RooFitResult::floatParsInit ( ) const
inline

Definition at line 106 of file RooFitResult.h.

◆ globalCorr() [1/3]

const RooArgList * RooFitResult::globalCorr ( )

Return the list of all global correlations.

Definition at line 466 of file RooFitResult.cxx.

◆ globalCorr() [2/3]

Double_t RooFitResult::globalCorr ( const char *  parname)

Return the global correlation of the named parameter.

Definition at line 442 of file RooFitResult.cxx.

◆ globalCorr() [3/3]

Double_t RooFitResult::globalCorr ( const RooAbsArg par)
inline

Definition at line 137 of file RooFitResult.h.

◆ isIdentical()

Bool_t RooFitResult::isIdentical ( const RooFitResult other,
Double_t  tol = 1e-6,
Double_t  tolCorr = 1e-4,
Bool_t  verbose = kTRUE 
) const

Return true if this fit result is identical to other within tolerances.

Parameters
[in]otherFit result to test against.
[in]tolRelative tolerance for parameters and NLL.
[in]tolCorrabsolute tolerance for correlation coefficients.
[in]verboseIgnored.

Definition at line 800 of file RooFitResult.cxx.

◆ lastMinuitFit()

RooFitResult * RooFitResult::lastMinuitFit ( const RooArgList varList = RooArgList())
static

Import the results of the last fit performed by gMinuit, interpreting the fit parameters as the given varList of parameters.

Definition at line 910 of file RooFitResult.cxx.

◆ minNll()

Double_t RooFitResult::minNll ( ) const
inline

Definition at line 98 of file RooFitResult.h.

◆ numInvalidNLL()

Int_t RooFitResult::numInvalidNLL ( ) const
inline

Definition at line 90 of file RooFitResult.h.

◆ numStatusHistory()

UInt_t RooFitResult::numStatusHistory ( ) const
inline

Definition at line 82 of file RooFitResult.h.

◆ plotOn() [1/2]

RooPlot* RooFitResult::plotOn ( RooPlot frame,
const RooAbsArg par1,
const RooAbsArg par2,
const char *  options = "ME" 
) const
inline

Definition at line 143 of file RooFitResult.h.

◆ plotOn() [2/2]

RooPlot * RooFitResult::plotOn ( RooPlot frame,
const char *  parName1,
const char *  parName2,
const char *  options = "ME" 
) const

Add objects to a 2D plot that represent the fit results for the two named parameters.

The input frame with the objects added is returned, or zero in case of an error. Which objects are added are determined by the options string which should be a concatenation of the following (not case sensitive):

  • M - a marker at the best fit result
  • E - an error ellipse calculated at 1-sigma using the error matrix at the minimum
  • 1 - the 1-sigma error bar for parameter 1
  • 2 - the 1-sigma error bar for parameter 2
  • B - the bounding box for the error ellipse
  • H - a line and horizontal axis for reading off the correlation coefficient
  • V - a line and vertical axis for reading off the correlation coefficient
  • A - draw axes for reading off the correlation coefficients with the H or V options

You can change the attributes of objects in the returned RooPlot using the various RooPlot::getAttXxx(name) member functions, e.g.

plot->getAttLine("contour")->SetLineStyle(kDashed);

Use plot->Print() for a list of all objects and their names (unfortunately most of the ROOT builtin graphics objects like TLine are unnamed). Drag the left mouse button along the labels of either axis button to interactively zoom in a plot.

Definition at line 248 of file RooFitResult.cxx.

◆ prefitResult()

RooFitResult * RooFitResult::prefitResult ( const RooArgList paramList)
static

Import the results of the last fit performed by gMinuit, interpreting the fit parameters as the given varList of parameters.

Definition at line 1003 of file RooFitResult.cxx.

◆ Print()

virtual void RooFitResult::Print ( Option_t option = 0) const
inlinevirtual

Print TNamed name and title.

Reimplemented from TNamed.

Definition at line 66 of file RooFitResult.h.

◆ printArgs()

void RooFitResult::printArgs ( std::ostream &  os) const
virtual

Print arguments of fit result, i.e. the parameters of the fit.

Reimplemented from RooPrintable.

Definition at line 1421 of file RooFitResult.cxx.

◆ printClassName()

void RooFitResult::printClassName ( std::ostream &  os) const
virtual

Print class name of fit result.

Reimplemented from RooPrintable.

Definition at line 1412 of file RooFitResult.cxx.

◆ printMultiline()

void RooFitResult::printMultiline ( std::ostream &  os,
Int_t  contents,
Bool_t  verbose = kFALSE,
TString  indent = "" 
) const
virtual

Print fit result to stream 'os'.

In Verbose mode, the constant parameters and the initial and final values of the floating parameters are printed. Standard mode only the final values of the floating parameters are printed

Reimplemented from RooPrintable.

Definition at line 501 of file RooFitResult.cxx.

◆ printName()

void RooFitResult::printName ( std::ostream &  os) const
virtual

Print name of fit result.

Reimplemented from RooPrintable.

Definition at line 1394 of file RooFitResult.cxx.

◆ printTitle()

void RooFitResult::printTitle ( std::ostream &  os) const
virtual

Print title of fit result.

Reimplemented from RooPrintable.

Definition at line 1403 of file RooFitResult.cxx.

◆ printValue()

void RooFitResult::printValue ( std::ostream &  os) const
virtual

Print the value of the fit result, i.e.g the status, minimized FCN, edm and covariance quality code.

Reimplemented from RooPrintable.

Definition at line 1431 of file RooFitResult.cxx.

◆ randomizePars()

const RooArgList & RooFitResult::randomizePars ( ) const

Return a list of floating parameter values that are perturbed from the final fit values by random amounts sampled from the covariance matrix.

The returned object is overwritten with each call and belongs to the RooFitResult. Uses the "square root method" to decompose the covariance matrix, which makes inverting it unnecessary.

Definition at line 346 of file RooFitResult.cxx.

◆ reducedCovarianceMatrix()

TMatrixDSym RooFitResult::reducedCovarianceMatrix ( const RooArgList params) const

Return a reduced covariance matrix (Note that Vred is a simple sub-matrix of V, row/columns are ordered to matched the convention given in input argument 'params'.

Definition at line 1120 of file RooFitResult.cxx.

◆ setConstParList()

void RooFitResult::setConstParList ( const RooArgList list)
protected

Fill the list of constant parameters.

Definition at line 137 of file RooFitResult.cxx.

◆ setCovarianceMatrix()

void RooFitResult::setCovarianceMatrix ( TMatrixDSym V)
protected

Store externally provided correlation matrix in this RooFitResult ;.

Definition at line 1048 of file RooFitResult.cxx.

◆ setCovQual()

void RooFitResult::setCovQual ( Int_t  val)
inlineprotected

Definition at line 170 of file RooFitResult.h.

◆ setEDM()

void RooFitResult::setEDM ( Double_t  val)
inlineprotected

Definition at line 168 of file RooFitResult.h.

◆ setFinalParList()

void RooFitResult::setFinalParList ( const RooArgList list)
protected

Fill the list of final values of the floating parameters.

Definition at line 177 of file RooFitResult.cxx.

◆ setInitParList()

void RooFitResult::setInitParList ( const RooArgList list)
protected

Fill the list of initial values of the floating parameters.

Definition at line 157 of file RooFitResult.cxx.

◆ setMinNLL()

void RooFitResult::setMinNLL ( Double_t  val)
inlineprotected

Definition at line 167 of file RooFitResult.h.

◆ SetName()

void RooFitResult::SetName ( const char *  name)
virtual

Change name of RooFitResult object.

Reimplemented from TNamed.

Definition at line 1372 of file RooFitResult.cxx.

◆ SetNameTitle()

void RooFitResult::SetNameTitle ( const char *  name,
const char *  title 
)
virtual

Change name and title of RooFitResult object.

Reimplemented from TNamed.

Definition at line 1383 of file RooFitResult.cxx.

◆ setNumInvalidNLL()

void RooFitResult::setNumInvalidNLL ( Int_t  val)
inlineprotected

Definition at line 171 of file RooFitResult.h.

◆ setStatus()

void RooFitResult::setStatus ( Int_t  val)
inlineprotected

Definition at line 169 of file RooFitResult.h.

◆ setStatusHistory()

void RooFitResult::setStatusHistory ( std::vector< std::pair< std::string, int > > &  hist)
inlineprotected

Definition at line 176 of file RooFitResult.h.

◆ status()

Int_t RooFitResult::status ( ) const
inline

Definition at line 77 of file RooFitResult.h.

◆ statusCodeHistory()

Int_t RooFitResult::statusCodeHistory ( UInt_t  icycle) const

Definition at line 197 of file RooFitResult.cxx.

◆ statusLabelHistory()

const char * RooFitResult::statusLabelHistory ( UInt_t  icycle) const

Definition at line 211 of file RooFitResult.cxx.

Friends And Related Function Documentation

◆ RooMinimizer

friend class RooMinimizer
friend

Definition at line 162 of file RooFitResult.h.

◆ RooMinuit

friend class RooMinuit
friend

Definition at line 161 of file RooFitResult.h.

Member Data Documentation

◆ _CM

TMatrixDSym* RooFitResult::_CM
protected

triangular matrix used for generate random perturbations

Definition at line 196 of file RooFitResult.h.

◆ _constPars

RooArgList* RooFitResult::_constPars
protected

Definition at line 186 of file RooFitResult.h.

◆ _corrMatrix

TList RooFitResult::_corrMatrix
mutableprotected

List of global correlation coefficients.

Definition at line 191 of file RooFitResult.h.

◆ _covQual

Int_t RooFitResult::_covQual
protected

Definition at line 182 of file RooFitResult.h.

◆ _edm

Double_t RooFitResult::_edm
protected

Definition at line 185 of file RooFitResult.h.

◆ _finalPars

RooArgList* RooFitResult::_finalPars
protected

Definition at line 188 of file RooFitResult.h.

◆ _GC

TVectorD* RooFitResult::_GC
protected

Definition at line 198 of file RooFitResult.h.

◆ _globalCorr

RooArgList* RooFitResult::_globalCorr
mutableprotected

Definition at line 190 of file RooFitResult.h.

◆ _initPars

RooArgList* RooFitResult::_initPars
protected

Definition at line 187 of file RooFitResult.h.

◆ _Lt

TMatrixF* RooFitResult::_Lt
mutableprotected

List of floating parameters with most recent random perturbation applied.

Definition at line 194 of file RooFitResult.h.

◆ _minNLL

Double_t RooFitResult::_minNLL
protected

Definition at line 184 of file RooFitResult.h.

◆ _numBadNLL

Int_t RooFitResult::_numBadNLL
protected

Definition at line 183 of file RooFitResult.h.

◆ _randomPars

RooArgList* RooFitResult::_randomPars
mutableprotected

Correlation matrix (list of RooArgLists)

Definition at line 193 of file RooFitResult.h.

◆ _status

Int_t RooFitResult::_status
protected

Definition at line 181 of file RooFitResult.h.

◆ _statusHistory

std::vector<std::pair<std::string,int> > RooFitResult::_statusHistory
protected

Definition at line 200 of file RooFitResult.h.

◆ _VM

TMatrixDSym* RooFitResult::_VM
protected

Definition at line 197 of file RooFitResult.h.

Libraries for RooFitResult:
[legend]

The documentation for this class was generated from the following files:
RooPlot::getAttLine
TAttLine * getAttLine(const char *name=0) const
Return a pointer to the line attributes of the named object in this plot, or zero if the named object...
Definition: RooPlot.cxx:866
kDashed
@ kDashed
Definition: TAttLine.h:48