TLinearFitter Class Reference

Note

An alternative to this class is to use ROOT::Fit::Fitter, calling the LinearFit() method.

The Linear Fitter - For fitting functions that are LINEAR IN PARAMETERS

The Linear Fitter

Linear fitter is used to fit a set of data points with a linear combination of specified functions. Note, that "linear" in the name stands only for the model dependency on parameters, the specified functions can be nonlinear. The general form of this kind of model is

y(x) = a[0] + a[1]*f[1](x)+...a[n]*f[n](x)

Functions f are fixed functions of x. For example, fitting with a polynomial is linear fitting in this sense.

Introduction

The fitting method

The fit is performed using the Normal Equations method with Cholesky decomposition.

Why should it be used?

The linear fitter is considerably faster than general non-linear fitters and doesn't require to set the initial values of parameters.

Using the fitter:

1.Adding the data points:

1.1 To store or not to store the input data?

• There are 2 options in the constructor - to store or not store the input data. The advantages of storing the data are that you'll be able to reset the fitting model without adding all the points again, and that for very large sets of points the chisquare is calculated more precisely. The obvious disadvantage is the amount of memory used to keep all the points.
• Before you start adding the points, you can change the store/not store option by StoreData() method.

1.2 The data can be added:

• simply point by point - AddPoint() method
• an array of points at once: If the data is already stored in some arrays, this data can be assigned to the linear fitter without physically coping bytes, thanks to the Use() method of TVector and TMatrix classes - AssignData() method

2.Setting the formula

2.1 The linear formula syntax:

-Additive parts are separated by 2 plus signs "++" –for example "1 ++ x" - for fitting a straight line -All standard functions, undrestood by TFormula, can be used as additive parts –TMath functions can be used too -Functions, used as additive parts, shouldn't have any parameters, even if those parameters are set. –for example, if normalizing a sum of a gaus(0, 1) and a gaus(0, 2), don't use the built-in "gaus" of TFormula, because it has parameters, take TMath::Gaus(x, 0, 1) instead. -Polynomials can be used like "pol3", .."polN" -If fitting a more than 3-dimensional formula, variables should be numbered as follows: – x[0], x[1], x[2]... For example, to fit "1 ++ x[0] ++ x[1] ++ x[2] ++ x[3]*x[3]"

2.2 Setting the formula:

2.2.1 If fitting a 1-2-3-dimensional formula, one can create a

TF123 based on a linear expression and pass this function to the fitter: –Example:

TLinearFitter *lf = new TLinearFitter();
TF2 *f2 = new TF2("f2", "x ++ y ++ x*x*y*y", -2, 2, -2, 2);
lf->SetFormula(f2);

–The results of the fit are then stored in the function, just like when the TH1::Fit or TGraph::Fit is used –A linear function of this kind is by no means different from any other function, it can be drawn, evaluated, etc.

–For multidimensional fitting, TFormulas of the form: x[0]++...++x[n] can be used

2.2.2 There is no need to create the function if you don't want to,

the formula can be set by expression: –Example:

// 2 is the number of dimensions
TLinearFitter *lf = new TLinearFitter(2);
lf->SetFormula("x ++ y ++ x*x*y*y");

2.2.3 The fastest functions to compute are polynomials and hyperplanes.

–Polynomials are set the usual way: "pol1", "pol2",... –Hyperplanes are set by expression "hyp3", "hyp4", ... —The "hypN" expressions only work when the linear fitter is used directly, not through TH1::Fit or TGraph::Fit. To fit a graph or a histogram with a hyperplane, define the function as "1++x++y". —A constant term is assumed for a hyperplane, when using the "hypN" expression, so "hyp3" is in fact fitting with "1++x++y++z" function. –Fitting hyperplanes is much faster than fitting other expressions so if performance is vital, calculate the function values beforehand and give them to the fitter as variables –Example: You want to fit "sin(x)|cos(2*x)" very fast. Calculate sin(x) and cos(2*x) beforehand and store them in array *data. Then: TLinearFitter *lf=new TLinearFitter(2, "hyp2"); lf->AssignData(npoint, 2, data, y);

2.3 Resetting the formula

2.3.1 If the input data is stored (or added via AssignData() function),

the fitting formula can be reset without re-adding all the points. –Example:

TLinearFitter *lf=new TLinearFitter("1++x++x*x");
lf->AssignData(n, 1, x, y, e);
lf->Eval()
//looking at the parameter significance, you see,
// that maybe the fit will improve, if you take out
// the constant term
lf->SetFormula("x++x*x");
lf->Eval();
...

2.3.2 If the input data is not stored, the fitter will have to be

cleared and the data will have to be added again to try a different formula.

3.Accessing the fit results

3.1 There are methods in the fitter to access all relevant information:

–GetParameters, GetCovarianceMatrix, etc –the t-values of parameters and their significance can be reached by GetParTValue() and GetParSignificance() methods

3.2 If fitting with a pre-defined TF123, the fit results are also

written into this function.

4.Robust fitting - Least Trimmed Squares regression (LTS)

Outliers are atypical(by definition), infrequant observations; data points which do not appear to follow the characteristic distribution of the rest of the data. These may reflect genuine properties of the underlying phenomenon(variable), or be due to measurement errors or anomalies which shouldn't be modelled. (StatSoft electronic textbook)

Even a single gross outlier can greatly influence the results of least- squares fitting procedure, and in this case use of robust(resistant) methods is recommended.

The method implemented here is based on the article and algorithm: "Computing LTS Regression for Large Data Sets" by P.J.Rousseeuw and Katrien Van Driessen The idea of the method is to find the fitting coefficients for a subset of h observations (out of n) with the smallest sum of squared residuals. The size of the subset h should lie between (npoints + nparameters +1)/2 and n, and represents the minimal number of good points in the dataset. The default value is set to (npoints + nparameters +1)/2, but of course if you are sure that the data contains less outliers it's better to change h according to your data.

To perform a robust fit, call EvalRobust() function instead of Eval() after adding the points and setting the fitting function. Note, that standard errors on parameters are not computed!

Definition at line 153 of file TLinearFitter.h.

Public Types
enum	{ kSingleKey = (1ULL << (0)) , kOverwrite = (1ULL << (1)) , kWriteDelete = (1ULL << (2)) }
enum	{   kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,   kBitMask = 0x00ffffff }
enum	EDeprecatedStatusBits { kObjInCanvas = (1ULL << (3)) }
enum	EStatusBits {   kCanDelete = (1ULL << (0)) , kMustCleanup = (1ULL << (3)) , kIsReferenced = (1ULL << (4)) , kHasUUID = (1ULL << (5)) ,   kCannotPick = (1ULL << (6)) , kNoContextMenu = (1ULL << (8)) , kInvalidObject = (1ULL << (13)) }
typedef void(*	FCNFunc_t) (Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag)

Public Member Functions
	TLinearFitter ()
	default c-tor, input data is stored If you don't want to store the input data, run the function StoreData(kFALSE) after constructor
	TLinearFitter (Int_t ndim)
	The parameter stands for number of dimensions in the fitting formula The input data is stored.
	TLinearFitter (Int_t ndim, const char *formula, Option_t *opt="D")
	First parameter stands for number of dimensions in the fitting formula Second parameter is the fitting formula: see class description for formula syntax Options: The option is to store or not to store the data If you don't want to store the data, choose "" for the option, or run StoreData(kFalse) member function after the constructor.
	TLinearFitter (TFormula *function, Option_t *opt="D")
	This constructor uses a linear function.
	~TLinearFitter () override
	Linear fitter cleanup.
void	AbstractMethod (const char *method) const
	Call this function within a function that you don't want to define as purely virtual, in order not to force all users deriving from that class to implement that maybe (on their side) unused function; but at the same time, emit a run-time warning if they try to call it, telling that it is not implemented in the derived class: action must thus be taken on the user side to override it.
virtual void	Add (TLinearFitter *tlf)
	Add another linear fitter to this linear fitter.
virtual void	AddPoint (Double_t *x, Double_t y, Double_t e=1)
	Adds 1 point to the fitter.
virtual void	AddTempMatrices ()
virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.
virtual void	AssignData (Int_t npoints, Int_t xncols, Double_t *x, Double_t *y, Double_t *e=nullptr)
	This function is to use when you already have all the data in arrays and don't want to copy them into the fitter.
virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.
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.
virtual void	Chisquare ()
	Calculates the chisquare.
Double_t	Chisquare (Int_t, Double_t *) const override
virtual const char *	ClassName () const
	Returns name of class to which the object belongs.
void	Clear (Option_t *option="") override
	Clears everything. Used in TH1::Fit and TGraph::Fit().
virtual void	ClearPoints ()
	To be used when different sets of points are fitted with the same formula.
TObject *	Clone (const char *newname="") const override
	Make a clone of an object using the Streamer facility.
Int_t	Compare (const TObject *obj) const override
	Compare two TNamed objects.
void	Copy (TObject &named) const override
	Copy this to obj.
virtual void	Delete (Option_t *option="")
	Delete this object.
virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.
virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.
virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.
virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).
virtual void	Dump () const
	Dump contents of object on stdout.
virtual void	Error (const char *method, const char *msgfmt,...) const
	Issue error message.
virtual Int_t	Eval ()
	Perform the fit and evaluate the parameters Returns 0 if the fit is ok, 1 if there are errors.
virtual Int_t	EvalRobust (Double_t h=-1)
	Finds the parameters of the fitted function in case data contains outliers.
virtual void	Execute (const char *method, const char *params, Int_t *error=nullptr)
	Execute method on this object with the given parameter string, e.g.
virtual void	Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr)
	Execute method on this object with parameters stored in the TObjArray.
Int_t	ExecuteCommand (const char *command, Double_t *args, Int_t nargs) override
	To use in TGraph::Fit and TH1::Fit().
virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).
virtual void	Fatal (const char *method, const char *msgfmt,...) const
	Issue fatal error message.
virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer.
virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.
virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.
void	FixParameter (Int_t ipar) override
	Fixes paramter #ipar at its current value.
virtual void	FixParameter (Int_t ipar, Double_t parvalue)
	Fixes parameter #ipar at value parvalue.
virtual void	GetAtbVector (TVectorD &v)
	Get the Atb vector - a vector, used for internal computations.
virtual Double_t	GetChisquare ()
	Get the Chisquare.
void	GetConfidenceIntervals (Int_t n, Int_t ndim, const Double_t *x, Double_t *ci, Double_t cl=0.95) override
	Computes point-by-point confidence intervals for the fitted function Parameters: n - number of points ndim - dimensions of points x - points, at which to compute the intervals, for ndim > 1 should be in order: (x0,y0, x1, y1, ... xn, yn) ci - computed intervals are returned in this array cl - confidence level, default=0.95.
void	GetConfidenceIntervals (TObject *obj, Double_t cl=0.95) override
	Computes confidence intervals at level cl.
Double_t *	GetCovarianceMatrix () const override
	Returns covariance matrix.
virtual void	GetCovarianceMatrix (TMatrixD &matr)
	Returns covariance matrix.
Double_t	GetCovarianceMatrixElement (Int_t i, Int_t j) const override
virtual void	GetDesignMatrix (TMatrixD &matr)
	Returns the internal design matrix.
virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.
Int_t	GetErrors (Int_t, Double_t &, Double_t &, Double_t &, Double_t &) const override
virtual void	GetErrors (TVectorD &vpar)
	Returns parameter errors.
virtual FCNFunc_t	GetFCN ()
virtual Foption_t	GetFitOption () const
virtual void	GetFitSample (TBits &bits)
	For robust lts fitting, returns the sample, on which the best fit was based.
virtual const char *	GetIconName () const
	Returns mime type name of object.
TMethodCall *	GetMethodCall () const
const char *	GetName () const override
	Returns name of object.
virtual Int_t	GetNpoints ()
Int_t	GetNumberFreeParameters () const override
Int_t	GetNumberTotalParameters () const override
virtual TObject *	GetObjectFit () const
virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).
virtual Option_t *	GetOption () const
Double_t	GetParameter (Int_t ipar) const override
Int_t	GetParameter (Int_t ipar, char *name, Double_t &value, Double_t &, Double_t &, Double_t &) const override
	Returns the value and the name of the parameter #ipar NB: In the calling function the argument name must be set large enough.
virtual void	GetParameters (TVectorD &vpar)
	Returns parameter values.
Double_t	GetParError (Int_t ipar) const override
	Returns the error of parameter #ipar.
const char *	GetParName (Int_t ipar) const override
	Returns name of parameter #ipar.
virtual Double_t	GetParSignificance (Int_t ipar)
	Returns the significance of parameter #ipar.
virtual Double_t	GetParTValue (Int_t ipar)
	Returns the t-value for parameter #ipar.
Int_t	GetStats (Double_t &, Double_t &, Double_t &, Int_t &, Int_t &) const override
Double_t	GetSumLog (Int_t) override
const char *	GetTitle () const override
	Returns title of object.
virtual UInt_t	GetUniqueID () const
	Return the unique object id.
virtual TObject *	GetUserFunc () const
virtual Int_t	GetXfirst () const
virtual Int_t	GetXlast () const
virtual Double_t	GetY2 () const
virtual Int_t	GetYfirst () const
virtual Int_t	GetYlast () const
virtual Int_t	GetZfirst () const
virtual Int_t	GetZlast () const
virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.
ULong_t	Hash () const override
	Return hash value for this object.
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.
virtual void	Info (const char *method, const char *msgfmt,...) const
	Issue info message.
virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".
virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.
virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.
void	InvertBit (UInt_t f)
TClass *	IsA () const override
Bool_t	IsDestructed () const
	IsDestructed.
virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).
Bool_t	IsFixed (Int_t ipar) const override
virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).
Bool_t	IsOnHeap () const
Bool_t	IsSortable () const override
Bool_t	IsZombie () const
void	ls (Option_t *option="") const override
	List TNamed name and title.
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).
virtual Int_t	Merge (TCollection *list)
	Merge objects in list.
virtual Bool_t	Notify ()
	This method must be overridden to handle object notification (the base implementation is no-op).
void	Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.
void	operator delete (void *, size_t)
	Operator delete for sized deallocation.
void	operator delete (void *ptr)
	Operator delete.
void	operator delete (void *ptr, void *vp)
	Only called by placement new when throwing an exception.
void	operator delete[] (void *, size_t)
	Operator delete [] for sized deallocation.
void	operator delete[] (void *ptr)
	Operator delete [].
void	operator delete[] (void *ptr, void *vp)
	Only called by placement new[] when throwing an exception.
void *	operator new (size_t sz)
void *	operator new (size_t sz, void *vp)
void *	operator new[] (size_t sz)
void *	operator new[] (size_t sz, void *vp)
virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.
virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.
void	Print (Option_t *option="") const override
	Print TNamed name and title.
void	PrintResults (Int_t level, Double_t amin=0) const override
	Level = 3 (to be consistent with minuit) prints parameters and parameter errors.
virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.
virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.
void	ReleaseParameter (Int_t ipar) override
	Releases parameter #ipar.
void	ResetBit (UInt_t f)
virtual void	SaveAs (const char *filename="", Option_t *option="") const
	Save this object in the file specified by filename.
virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".
virtual void	SetBasisFunctions (TObjArray *functions)
	set the basis functions in case the fitting function is not set directly The TLinearFitter will manage and delete the functions contained in the list
void	SetBit (UInt_t f)
void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.
virtual Double_t *	SetCache (Int_t npoints, Int_t psize)
	Initialize the cache array npoints is the number of points to be stored (or already stored) in the cache psize is the number of elements per point.
virtual void	SetDim (Int_t n)
	set the number of dimensions
virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.
virtual void	SetFCN (void(*fcn)(Int_t &, Double_t *, Double_t &f, Double_t *, Int_t))
	To set the address of the minimization objective function called by the native compiler (see function below when called by Cling).
void	SetFitMethod (const char *) override
virtual void	SetFitOption (Foption_t option)
virtual void	SetFormula (const char *formula)
	Additive parts should be separated by "++".
virtual void	SetFormula (TFormula *function)
	Set the fitting function.
virtual void	SetName (const char *name)
	Set the name of the TNamed.
virtual void	SetNameTitle (const char *name, const char *title)
	Set all the TNamed parameters (name and title).
virtual void	SetObjectFit (TObject *obj)
Int_t	SetParameter (Int_t, const char *, Double_t, Double_t, Double_t, Double_t) override
virtual void	SetTitle (const char *title="")
	Set the title of the TNamed.
virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.
virtual void	SetUserFunc (TObject *userfunc)
virtual void	SetXfirst (Int_t first)
virtual void	SetXlast (Int_t last)
virtual void	SetYfirst (Int_t first)
virtual void	SetYlast (Int_t last)
virtual void	SetZfirst (Int_t first)
virtual void	SetZlast (Int_t last)
virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject.
virtual void	StoreData (Bool_t store)
void	Streamer (TBuffer &) override
	Stream an object of class TObject.
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
virtual void	SysError (const char *method, const char *msgfmt,...) const
	Issue system error message.
Bool_t	TestBit (UInt_t f) const
Int_t	TestBits (UInt_t f) const
virtual Bool_t	UpdateMatrix ()
	Update the design matrix after the formula has been changed.
virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.
virtual void	Warning (const char *method, const char *msgfmt,...) const
	Issue warning message.
virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.
virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Static Public Member Functions
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()
static TVirtualFitter *	Fitter (TObject *obj, Int_t maxpar=25)
	Static function returning a pointer to the current fitter.
static const char *	GetDefaultFitter ()
	static: return the name of the default fitter
static Longptr_t	GetDtorOnly ()
	Return destructor only flag.
static Double_t	GetErrorDef ()
	static: Return the Error Definition
static TVirtualFitter *	GetFitter ()
	static: return the current Fitter
static Int_t	GetMaxIterations ()
	static: Return the maximum number of iterations actually max number of function calls
static Bool_t	GetObjectStat ()
	Get status of object stat flag.
static Double_t	GetPrecision ()
	static: Return the fit relative precision
static void	SetDefaultFitter (const char *name="")
	static: set name of default fitter
static void	SetDtorOnly (void *obj)
	Set destructor only flag.
static void	SetErrorDef (Double_t errdef=1)
	static: Set the Error Definition (default=1) For Minuit this is the value passed with the "SET ERR" command (see https://cern-tex.web.cern.ch/cern-tex/minuit/node18.html)
static void	SetFitter (TVirtualFitter *fitter, Int_t maxpar=25)
	Static function to set an alternative fitter.
static void	SetMaxIterations (Int_t niter=5000)
	static: Set the maximum number of function calls for the minimization algorithm For example for MIGRAD this is the maxcalls value passed as first argument (see https://cern-tex.web.cern.ch/cern-tex/minuit/node18.html )
static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.
static void	SetPrecision (Double_t prec=1e-6)
	static: Set the tolerance used in the minimization algorithm For example for MIGRAD this is tolerance value passed as second argument (see https://cern-tex.web.cern.ch/cern-tex/minuit/node18.html )

Protected Types
enum	{ kOnlyPrepStep = (1ULL << (3)) }

Protected Member Functions
virtual void	DoError (int level, const char *location, const char *fmt, va_list va) const
	Interface to ErrorHandler (protected).
void	MakeZombie ()
void	SavePrimitiveNameTitle (std::ostream &out, const char *variable_name)
	Save object name and title into the output stream "out".

Static Protected Member Functions
static void	SavePrimitiveConstructor (std::ostream &out, TClass *cl, const char *variable_name, const char *constructor_agrs="", Bool_t empty_line=kTRUE)
	Save object constructor in the output stream "out".
static void	SavePrimitiveDraw (std::ostream &out, const char *variable_name, Option_t *option=nullptr)
	Save invocation of primitive Draw() method Skipped if option contains "nodraw" string.
static TString	SavePrimitiveVector (std::ostream &out, const char *prefix, Int_t len, Double_t *arr, Int_t flag=0)
	Save array in the output stream "out" as vector.

Protected Attributes
Double_t *	fCache
	[fCacheSize] Array of points data (fNpoints*fPointSize < fCacheSize words)
Int_t	fCacheSize
	Size of the fCache array.
void(*	fFCN )(Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag)
TMethodCall *	fMethodCall
	Pointer to MethodCall in case of interpreted function.
TString	fName
TObject *	fObjectFit
	Pointer to object being fitted.
Foption_t	fOption
	Struct with the fit options.
Int_t	fPointSize
	Number of words per point in the cache.
TString	fTitle
TObject *	fUserFunc
	Pointer to user theoretical function (a TF1*).
Int_t	fXfirst
	First bin on X axis.
Int_t	fXlast
	Last bin on X axis.
Int_t	fYfirst
	First bin on Y axis.
Int_t	fYlast
	Last bin on Y axis.
Int_t	fZfirst
	First bin on Z axis.
Int_t	fZlast
	Last bin on Z axis.

Private Member Functions
	TLinearFitter (const TLinearFitter &)=delete
void	AddToDesign (Double_t *x, Double_t y, Double_t e)
	Add a point to the AtA matrix and to the Atb vector.
void	ComputeTValues ()
	Computes parameters' t-values and significance.
void	CreateSubset (Int_t ntotal, Int_t h, Int_t *index)
	Creates a p-subset to start ntotal - total number of points from which the subset is chosen.
Double_t	CStep (Int_t step, Int_t h, Double_t *residuals, Int_t *index, Int_t *subdat, Int_t start, Int_t end)
	The CStep procedure, as described in the article.
Int_t	Graph2DLinearFitter (Double_t h)
	Minimisation function for a TGraph2D.
Int_t	GraphLinearFitter (Double_t h)
	Used in TGraph::Fit().
Int_t	HistLinearFitter ()
	Minimization function for H1s using a Chisquare method.
Bool_t	Linf ()
Int_t	MultiGraphLinearFitter (Double_t h)
	Minimisation function for a TMultiGraph.
TLinearFitter &	operator= (const TLinearFitter &)=delete
Int_t	Partition (Int_t nmini, Int_t *indsubdat)
	divides the elements into approximately equal subgroups number of elements in each subgroup is stored in indsubdat number of subgroups is returned
void	RDraw (Int_t *subdat, Int_t *indsubdat)
	Draws ngroup nonoverlapping subdatasets out of a dataset of size n such that the selected case numbers are uniformly distributed from 1 to n.

Static Private Member Functions
static void	AddToTObjectTable (TObject *)
	Private helper function which will dispatch to TObjectTable::AddObj.

Private Attributes
TVectorD	fAtb
TVectorD	fAtbTemp
	! temporary vector, used for num.stability
TVectorD	fAtbTemp2
	!
TVectorD	fAtbTemp3
	!
UInt_t	fBits
	bit field status word
Double_t	fChisquare
TMatrixDSym	fDesign
TMatrixDSym	fDesignTemp
	! temporary matrix, used for num.stability
TMatrixDSym	fDesignTemp2
	!
TMatrixDSym	fDesignTemp3
	!
TVectorD	fE
TBits	fFitsample
Bool_t *	fFixedParams
char *	fFormula
Int_t	fFormulaSize
TObjArray	fFunctions
Int_t	fH
TFormula *	fInputFunction
Bool_t	fIsSet
Int_t	fNdim
Int_t	fNfixed
Int_t	fNfunctions
Int_t	fNpoints
TVectorD	fParams
TMatrixDSym	fParCovar
TVectorD	fParSign
Bool_t	fRobust
Int_t	fSpecial
Bool_t	fStoreData
TVectorD	fTValues
UInt_t	fUniqueID
	object unique identifier
Double_t	fVal [1000]
	! temporary
TMatrixD	fX
TVectorD	fY
Double_t	fY2
Double_t	fY2Temp
	! temporary variable used for num.stability

Static Private Attributes
static Longptr_t	fgDtorOnly = 0
	object for which to call dtor only (i.e. no delete)
static std::map< TString, TFormula * >	fgFormulaMap
	! map of basis functions and formula
static Bool_t	fgObjectStat = kTRUE
	if true keep track of objects in TObjectTable

#include <TLinearFitter.h>

Inheritance diagram for TLinearFitter:

Member Typedef Documentation

FCNFunc_t

typedef void(* TVirtualFitter::FCNFunc_t) (Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag)

inherited

Definition at line 71 of file TVirtualFitter.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

protectedinherited

Enumerator

kOnlyPrepStep

Used to request that the class specific implementation of TObject::Write just prepare the objects to be ready to be written but do not actually write them into the TBuffer. This is just for example by TBufferMerger to request that the TTree inside the file calls TTree::FlushBaskets (outside of the merging lock) and TBufferMerger will later ask for the write (inside the merging lock). To take advantage of this feature the class needs to overload TObject::Write and use this enum value accordingly. (See TTree::Write and TObject::Write) Do not use, this feature will be migrate to the Merge function (See TClass and TTree::Merge)

Definition at line 106 of file TObject.h.

anonymous enum

anonymous enum

inherited

Enumerator
kSingleKey	write collection with single key
kOverwrite	overwrite existing object with same name
kWriteDelete	write object, then delete previous key with same name

Definition at line 99 of file TObject.h.

anonymous enum

anonymous enum

inherited

Enumerator
kIsOnHeap	object is on heap
kNotDeleted	object has not been deleted
kZombie	object ctor failed
kInconsistent	class overload Hash but does call RecursiveRemove in destructor
kBitMask

Definition at line 89 of file TObject.h.

EDeprecatedStatusBits

enum TObject::EDeprecatedStatusBits

inherited

Enumerator
kObjInCanvas	for backward compatibility only, use kMustCleanup

Definition at line 84 of file TObject.h.

EStatusBits

enum TObject::EStatusBits

inherited

Enumerator
kCanDelete	if object in a list can be deleted
kMustCleanup	if object destructor must call RecursiveRemove()
kIsReferenced	if object is referenced by a TRef or TRefArray
kHasUUID	if object has a TUUID (its fUniqueID=UUIDNumber)
kCannotPick	if object in a pad cannot be picked
kNoContextMenu	if object does not want context menu
kInvalidObject	if object ctor succeeded but object should not be used

Definition at line 70 of file TObject.h.

Constructor & Destructor Documentation

TLinearFitter() [1/5]

TLinearFitter::TLinearFitter ( const TLinearFitter & )

privatedelete

TLinearFitter() [2/5]

TLinearFitter::TLinearFitter

(

)

default c-tor, input data is stored If you don't want to store the input data, run the function StoreData(kFALSE) after constructor

Definition at line 228 of file TLinearFitter.cxx.

TLinearFitter() [3/5]

TLinearFitter::TLinearFitter	(	Int_t	ndim,
		const char *	formula,
		Option_t *	opt = "D" )

First parameter stands for number of dimensions in the fitting formula Second parameter is the fitting formula: see class description for formula syntax Options: The option is to store or not to store the data If you don't want to store the data, choose "" for the option, or run StoreData(kFalse) member function after the constructor.

Definition at line 283 of file TLinearFitter.cxx.

TLinearFitter() [4/5]

TLinearFitter::TLinearFitter

(

Int_t

ndim

)

The parameter stands for number of dimensions in the fitting formula The input data is stored.

If you don't want to store the input data, run the function StoreData(kFALSE) after constructor

Definition at line 254 of file TLinearFitter.cxx.

TLinearFitter() [5/5]

TLinearFitter::TLinearFitter	(	TFormula *	function,
		Option_t *	opt = "D" )

This constructor uses a linear function.

How to create it? TFormula now accepts formulas of the following kind: TFormula("f", "x++y++z++x*x") or TFormula("f", "x[0]++x[1]++x[2]*x[2]"); Other than the look, it's in no way different from the regular formula, it can be evaluated, drawn, etc. The option is to store or not to store the data If you don't want to store the data, choose "" for the option, or run StoreData(kFalse) member function after the constructor

Definition at line 316 of file TLinearFitter.cxx.

~TLinearFitter()

TLinearFitter::~TLinearFitter ( )

override

Linear fitter cleanup.

Definition at line 350 of file TLinearFitter.cxx.

Member Function Documentation

AbstractMethod()

void TObject::AbstractMethod ( const char * method ) const

inherited

Call this function within a function that you don't want to define as purely virtual, in order not to force all users deriving from that class to implement that maybe (on their side) unused function; but at the same time, emit a run-time warning if they try to call it, telling that it is not implemented in the derived class: action must thus be taken on the user side to override it.

In other word, this method acts as a "runtime purely virtual" warning instead of a "compiler purely virtual" error.

Warning

This interface is a legacy function that is no longer recommended to be used by new development code.

Note

The name "AbstractMethod" does not imply that it's an abstract method in the strict C++ sense.

Definition at line 1149 of file TObject.cxx.

Add()

void TLinearFitter::Add ( TLinearFitter * tlf )

virtual

Add another linear fitter to this linear fitter.

Points and Design matrices are added, but the previous fitting results (if any) are deleted. Fitters must have same formulas (this is not checked). Fixed parameters are not changed

Definition at line 372 of file TLinearFitter.cxx.

AddPoint()

void TLinearFitter::AddPoint ( Double_t * x, Double_t y, Double_t e = 1 )

virtual

Adds 1 point to the fitter.

First parameter stands for the coordinates of the point, where the function is measured Second parameter - the value being fitted Third parameter - weight(measurement error) of this point (=1 by default)

Definition at line 421 of file TLinearFitter.cxx.

AddTempMatrices()

void TLinearFitter::AddTempMatrices ( )

virtual

Definition at line 583 of file TLinearFitter.cxx.

AddToDesign()

void TLinearFitter::AddToDesign ( Double_t * x, Double_t y, Double_t e )

private

Add a point to the AtA matrix and to the Atb vector.

Definition at line 497 of file TLinearFitter.cxx.

AddToTObjectTable()

void TObject::AddToTObjectTable ( TObject * op )

staticprivateinherited

Private helper function which will dispatch to TObjectTable::AddObj.

Included here to avoid circular dependency between header files.

Definition at line 195 of file TObject.cxx.

AppendPad()

void TObject::AppendPad ( Option_t * option = "" )

virtualinherited

Append graphics object to current pad.

In case no current pad is set yet, create a default canvas with the name "c1".

Definition at line 204 of file TObject.cxx.

AssignData()

void TLinearFitter::AssignData ( Int_t npoints, Int_t xncols, Double_t * x, Double_t * y, Double_t * e = nullptr )

virtual

This function is to use when you already have all the data in arrays and don't want to copy them into the fitter.

In this function, the Use() method of TVectorD and TMatrixD is used, so no bytes are physically moved around. First parameter - number of points to fit Second parameter - number of variables in the model Third parameter - the variables of the model, stored in the following way: (x0(0), x1(0), x2(0), x3(0), x0(1), x1(1), x2(1), x3(1),...

Definition at line 459 of file TLinearFitter.cxx.

Browse()

void TObject::Browse ( TBrowser * b )

virtualinherited

Browse object. May be overridden for another default action.

Reimplemented in RooPlot, ROOT::Experimental::XRooFit::xRooNode, ROOT::Internal::THnBaseBrowsable, TApplicationRemote, TASImage, TAxis3D, TBaseClass, TBranch, TBranchClones, TBranchElement, TBranchObject, TBranchSTL, TBrowserObject, TCanvas, TChain, TClass, TCollection, TCollectionPropertyBrowsable, TDatabasePDG, TDirectory, TDirectoryFile, TEfficiency, TF1, TFolder, TGenerator, TGeoManager, TGeometry, TGeoNode, TGeoOverlap, TGeoTrack, TGeoVolume, TGraph2D, TGraph, TH1, THbookBranch, THbookFile, THbookKey, THnBase, THStack, TKey, TKeyMapFile, TLeaf, TMacro, TMapFile, TMultiDimFit, TMultiGraph, TNode, TNtuple, TNtupleD, TPad, TPair, TParticleClassPDG, TPrincipal, TRecorder, TRemoteObject, TROOT, TRootIconList, TSPlot, TStyle, TSystemDirectory, TSystemFile, TTask, TTree, TTreePerfStats, and TVirtualBranchBrowsable.

Definition at line 218 of file TObject.cxx.

CheckedHash()

ULong_t TObject::CheckedHash ( )

inlineinherited

Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

The intent is for this routine to be called instead of directly calling the function Hash during "insert" operations. See TObject::HasInconsistenTObjectHash();

(*) The setup is consistent when all classes in the class hierarchy that overload TObject::Hash do call ROOT::CallRecursiveRemoveIfNeeded in their destructor. i.e. it is safe to call the Hash virtual function during the RecursiveRemove operation.

Definition at line 332 of file TObject.h.

Chisquare() [1/2]

void TLinearFitter::Chisquare ( )

virtual

Calculates the chisquare.

Definition at line 673 of file TLinearFitter.cxx.

Chisquare() [2/2]

Double_t TLinearFitter::Chisquare ( Int_t , Double_t *  ) const

inlineoverridevirtual

Implements TVirtualFitter.

Definition at line 270 of file TLinearFitter.h.

Class()

TClass * TLinearFitter::Class ( )

static

Returns

TClass describing this class

Class_Name()

const char * TLinearFitter::Class_Name ( )

static

Returns

Name of this class

Class_Version()

constexpr Version_t TLinearFitter::Class_Version ( )

inlinestaticconstexpr

Returns

Version of this class

Definition at line 278 of file TLinearFitter.h.

ClassName()

const char * TObject::ClassName ( ) const

virtualinherited

Returns name of class to which the object belongs.

Definition at line 227 of file TObject.cxx.

Clear()

void TLinearFitter::Clear ( Option_t * option = "" )

overridevirtual

Clears everything. Used in TH1::Fit and TGraph::Fit().

Implements TVirtualFitter.

Definition at line 607 of file TLinearFitter.cxx.

ClearPoints()

void TLinearFitter::ClearPoints ( )

virtual

To be used when different sets of points are fitted with the same formula.

Definition at line 647 of file TLinearFitter.cxx.

Clone()

TObject * TNamed::Clone ( const char * newname = "" ) const

overridevirtualinherited

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 TObject.

Reimplemented in TStreamerInfo, and TTreeIndex.

Definition at line 73 of file TNamed.cxx.

Compare()

Int_t TNamed::Compare ( const TObject * obj ) const

overridevirtualinherited

Compare two TNamed objects.

Returns 0 when equal, -1 when this is smaller and +1 when bigger (like strcmp).

Reimplemented from TObject.

Reimplemented in TStructNodeProperty.

Definition at line 84 of file TNamed.cxx.

ComputeTValues()

void TLinearFitter::ComputeTValues ( )

private

Computes parameters' t-values and significance.

Definition at line 738 of file TLinearFitter.cxx.

Copy()

void TNamed::Copy ( TObject & named ) const

overridevirtualinherited

Copy this to obj.

Reimplemented from TObject.

Reimplemented in TPieSlice, TProfile2D, TProfile3D, TProfile, TStyle, TSystemDirectory, TSystemFile, TText, and TXTRU.

Definition at line 93 of file TNamed.cxx.

CreateSubset()

void TLinearFitter::CreateSubset ( Int_t ntotal, Int_t h, Int_t * index )

private

Creates a p-subset to start ntotal - total number of points from which the subset is chosen.

Definition at line 2165 of file TLinearFitter.cxx.

CStep()

Double_t TLinearFitter::CStep ( Int_t step, Int_t h, Double_t * residuals, Int_t * index, Int_t * subdat, Int_t start, Int_t end )

private

The CStep procedure, as described in the article.

Definition at line 2228 of file TLinearFitter.cxx.

DeclFileName()

const char * TLinearFitter::DeclFileName ( )

inlinestatic

Returns

Name of the file containing the class declaration

Definition at line 278 of file TLinearFitter.h.

Delete()

void TObject::Delete ( Option_t * option = "" )

virtualinherited

Delete this object.

Typically called as a command via the interpreter. Normally use "delete" operator when object has been allocated on the heap.

Reimplemented in RooLinkedList, TAxis, TBtree, TCanvas, TClonesArray, TCollection, TDirectory, TDirectoryFile, TExMap, TFile, TGFrame, TGItemContext, TGTextEdit, THashList, THashTable, TKey, TKeySQL, TKeyXML, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TMap, TMVA::Results, TObjArray, TObjectTable, TOrdCollection, TProtoClass, TQCommand, TRefArray, TSystemDirectory, TSystemFile, TThread, TTree, TTreeViewer, TViewPubDataMembers, and TViewPubFunctions.

Definition at line 268 of file TObject.cxx.

DistancetoPrimitive()

Int_t TObject::DistancetoPrimitive ( Int_t px, Int_t py )

virtualinherited

Computes distance from point (px,py) to the object.

This member function must be implemented for each graphics primitive. This default function returns a big number (999999).

Reimplemented in TASImage, TAxis3D, TAxis, TBox, TBRIK, TColorWheel, TCrown, TCurlyArc, TCurlyLine, TDiamond, TEfficiency, TEllipse, TF1, TF2, TF3, TFileDrawMap, TGenerator, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoNode, TGeoOverlap, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShape, TGeoShapeAssembly, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTrack, TGeoTube, TGeoTubeSeg, TGeoVGShape, TGeoVolume, TGeoXtru, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLScenePad, TGLTH3Composition, TGLViewer, TGraph2D, TGraph, TGraphEdge, TGraphNode, TGraphPolargram, TH1, THistPainter, THStack, TLine, TMarker3DBox, TMarker, TMultiGraph, TNode, TPad, TPaletteAxis, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TParticle, TPave, TPCON, TPie, TPieSlice, TPoints3DABC, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TScatter2D, TScatter, TSPHE, TSpider, TSpline, TStyle, TText, TTreePerfStats, TTUBE, TTUBS, TVirtualHistPainter, and TXTRU.

Definition at line 284 of file TObject.cxx.

DoError()

void TObject::DoError ( int level, const char * location, const char * fmt, va_list va ) const

protectedvirtualinherited

Interface to ErrorHandler (protected).

Reimplemented in TThread, and TTreeViewer.

Definition at line 1059 of file TObject.cxx.

Draw()

void TObject::Draw ( Option_t * option = "" )

virtualinherited

Default Draw method for all objects.

Reimplemented in RooAbsData, RooPlot, RooStats::HypoTestInverterPlot, RooStats::SamplingDistPlot, ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoPoint, ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoSpace, ROOT::Experimental::XRooFit::xRooNode, ROOT::RGeoPainter, TArrow, TASImage, TBox, TBrowser, TButton, TCanvas, TChain, TClass, TClassTree, TCollection, TColorWheel, TDiamond, TDirectory, TEfficiency, TEllipse, TEveGeoNode, TEveGeoTopNode, TF1, TF2, TF3, TFile, TFITSHDU, TFrame, TGenerator, TGeoBatemanSol, TGeometry, TGeoNode, TGeoOverlap, TGeoPainter, TGeoParallelWorld, TGeoPhysicalNode, TGeoPolygon, TGeoShape, TGeoTrack, TGeoVGShape, TGeoVolume, TGItemContext, TGListTree, TGPicture, TGraph2D, TGraph, TGraphPolar, TGraphPolargram, TGraphStruct, TGraphTime, TH1, THelix, THStack, TLegend, TMarker, TMatrixTBase< Element >, TMatrixTBase< Double_t >, TMatrixTBase< Float_t >, TMultiDimFit, TMultiGraph, TMultiLayerPerceptron, TNode, TNodeDiv, TPad, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TPave, TPaveLabel, TPavesText, TPaveText, TPie, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TRatioPlot, TSpider, TSpline, TStructViewer, TStructViewerGUI, TTree, TTreePerfStats, TVectorT< Element >, TVectorT< Double_t >, TVectorT< Float_t >, TVirtualPad, and TWbox.

Definition at line 293 of file TObject.cxx.

DrawClass()

void TObject::DrawClass ( ) const

virtualinherited

Draw class inheritance tree of the class to which this object belongs.

If a class B inherits from a class A, description of B is drawn on the right side of description of A. Member functions overridden by B are shown in class A with a blue line crossing-out the corresponding member function. The following picture is the class inheritance tree of class TPaveLabel:

Reimplemented in TGFrame, TSystemDirectory, and TSystemFile.

Definition at line 308 of file TObject.cxx.

DrawClone()

TObject * TObject::DrawClone ( Option_t * option = "" ) const

virtualinherited

Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).

If pad was not selected - gPad will be used.

Note

For histograms, use the more specialised TH1::DrawCopy().

Reimplemented in TAxis, TCanvas, TGFrame, TSystemDirectory, and TSystemFile.

Definition at line 319 of file TObject.cxx.

Dump()

void TObject::Dump ( ) const

virtualinherited

Dump contents of object on stdout.

Using the information in the object dictionary (class TClass) each data member is interpreted. If a data member is a pointer, the pointer value is printed

The following output is the Dump of a TArrow object:

fAngle                   0           Arrow opening angle (degrees)
fArrowSize               0.2         Arrow Size
fOption.*fData
fX1                      0.1         X of 1st point
fY1                      0.15        Y of 1st point
fX2                      0.67        X of 2nd point
fY2                      0.83        Y of 2nd point
fUniqueID                0           object unique identifier
fBits                    50331648    bit field status word
fLineColor               1           line color
fLineStyle               1           line style
fLineWidth               1           line width
fFillColor               19          fill area color
fFillStyle               1001        fill area style

Reimplemented in TClass, TCollection, TGFrame, TGPack, and TSystemFile.

Definition at line 367 of file TObject.cxx.

Error()

void TObject::Error ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue error message.

Use "location" to specify the method where the error occurred. Accepts standard printf formatting arguments.

Reimplemented in TFitResult.

Definition at line 1098 of file TObject.cxx.

Eval()

Int_t TLinearFitter::Eval ( )

virtual

Perform the fit and evaluate the parameters Returns 0 if the fit is ok, 1 if there are errors.

Definition at line 750 of file TLinearFitter.cxx.

EvalRobust()

Int_t TLinearFitter::EvalRobust ( Double_t h = -1 )

virtual

Finds the parameters of the fitted function in case data contains outliers.

Parameter h stands for the minimal fraction of good points in the dataset (h < 1, i.e. for 70% of good points take h=0.7). The default value of h*Npoints is (Npoints + Nparameters+1)/2 If the user provides a value of h smaller than above, default is taken See class description for the algorithm details

Definition at line 1969 of file TLinearFitter.cxx.

Execute() [1/2]

void TObject::Execute ( const char * method, const char * params, Int_t * error = nullptr )

virtualinherited

Execute method on this object with the given parameter string, e.g.

"3.14,1,\"text\"".

Reimplemented in ROOT::R::TRInterface, TCling, TContextMenu, TInterpreter, and TMethodCall.

Definition at line 378 of file TObject.cxx.

Execute() [2/2]

void TObject::Execute ( TMethod * method, TObjArray * params, Int_t * error = nullptr )

virtualinherited

Execute method on this object with parameters stored in the TObjArray.

The TObjArray should contain an argv vector like:

argv[0] ... argv[n] = the list of TObjString parameters

Reimplemented in ROOT::R::TRInterface, TCling, TContextMenu, TInterpreter, and TMethodCall.

Definition at line 398 of file TObject.cxx.

ExecuteCommand()

Int_t TLinearFitter::ExecuteCommand ( const char * command, Double_t * args, Int_t nargs )

overridevirtual

To use in TGraph::Fit and TH1::Fit().

Implements TVirtualFitter.

Definition at line 1598 of file TLinearFitter.cxx.

ExecuteEvent()

void TObject::ExecuteEvent ( Int_t event, Int_t px, Int_t py )

virtualinherited

Execute action corresponding to an event at (px,py).

This method must be overridden if an object can react to graphics events.

Reimplemented in TASImage, TASPaletteEditor::LimitLine, TAxis3D, TAxis, TBox, TButton, TCanvas, TCrown, TCurlyArc, TCurlyLine, TDiamond, TEfficiency, TEllipse, TF1, TF2, TF3, TFrame, TGenerator, TGeoManager, TGeoNode, TGeoOverlap, TGeoShape, TGeoTrack, TGeoVolume, TGL5DDataSet, TGLEventHandler, TGLHistPainter, TGLParametricEquation, TGLScenePad, TGLTH3Composition, TGLViewer, TGraph2D, TGraph, TGraphEdge, TGraphNode, TGraphPolargram, TGroupButton, TH1, THistPainter, TLine, TLink, TMarker3DBox, TMarker, TNode, TPad, TPaletteAxis, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TParticle, TPave, TPie, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TScatter2D, TScatter, TSliderBox, TSpider, TSpline, TText, TTreePerfStats, TView3D, TView, TVirtualHistPainter, and TWbox.

Definition at line 415 of file TObject.cxx.

Fatal()

void TObject::Fatal ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue fatal error message.

Use "location" to specify the method where the fatal error occurred. Accepts standard printf formatting arguments.

Definition at line 1126 of file TObject.cxx.

FillBuffer()

void TNamed::FillBuffer ( char *& buffer )

virtualinherited

Encode TNamed into output buffer.

Reimplemented in TDirectoryFile, TFile, TKey, TKeySQL, TKeyXML, TSQLFile, and TXMLFile.

Definition at line 103 of file TNamed.cxx.

FindObject() [1/2]

TObject * TObject::FindObject ( const char * name ) const

virtualinherited

Must be redefined in derived classes.

This function is typically used with TCollections, but can also be used to find an object by name inside this object.

Reimplemented in RooAbsCollection, RooLinkedList, TBtree, TCollection, TDirectory, TFolder, TGeometry, TGraph2D, TGraph, TH1, THashList, THashTable, THbookFile, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TListOfTypes, TMap, TObjArray, TPad, TROOT, TViewPubDataMembers, and TViewPubFunctions.

Definition at line 425 of file TObject.cxx.

FindObject() [2/2]

TObject * TObject::FindObject ( const TObject * obj ) const

virtualinherited

Must be redefined in derived classes.

This function is typically used with TCollections, but can also be used to find an object inside this object.

Reimplemented in RooAbsCollection, RooLinkedList, TBtree, TCollection, TDirectory, TFolder, TGeometry, TGraph2D, TGraph, TH1, THashList, THashTable, THbookFile, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TListOfTypes, TMap, TObjArray, TPad, TROOT, TViewPubDataMembers, and TViewPubFunctions.

Definition at line 435 of file TObject.cxx.

Fitter()

TVirtualFitter * TVirtualFitter::Fitter ( TObject * obj, Int_t maxpar = 25 )

staticinherited

Static function returning a pointer to the current fitter.

If the fitter does not exist, the default TFitter is created. Don't delete the returned fitter object, it will be re-used.

Definition at line 109 of file TVirtualFitter.cxx.

FixParameter() [1/2]

void TLinearFitter::FixParameter ( Int_t ipar )

overridevirtual

Fixes paramter #ipar at its current value.

Implements TVirtualFitter.

Definition at line 877 of file TLinearFitter.cxx.

FixParameter() [2/2]

void TLinearFitter::FixParameter ( Int_t ipar, Double_t parvalue )

virtual

Fixes parameter #ipar at value parvalue.

Definition at line 900 of file TLinearFitter.cxx.

GetAtbVector()

void TLinearFitter::GetAtbVector ( TVectorD & v )

virtual

Get the Atb vector - a vector, used for internal computations.

Definition at line 940 of file TLinearFitter.cxx.

GetChisquare()

Double_t TLinearFitter::GetChisquare ( )

virtual

Get the Chisquare.

Definition at line 950 of file TLinearFitter.cxx.

GetConfidenceIntervals() [1/2]

void TLinearFitter::GetConfidenceIntervals ( Int_t n, Int_t ndim, const Double_t * x, Double_t * ci, Double_t cl = 0.95 )

overridevirtual

Computes point-by-point confidence intervals for the fitted function Parameters: n - number of points ndim - dimensions of points x - points, at which to compute the intervals, for ndim > 1 should be in order: (x0,y0, x1, y1, ... xn, yn) ci - computed intervals are returned in this array cl - confidence level, default=0.95.

NOTE, that this method can only be used when the fitting function inherits from a TF1, so it's not possible when the fitting function was set as a string or as a pure TFormula

Reimplemented from TVirtualFitter.

Definition at line 973 of file TLinearFitter.cxx.

GetConfidenceIntervals() [2/2]

void TLinearFitter::GetConfidenceIntervals ( TObject * obj, Double_t cl = 0.95 )

overridevirtual

Computes confidence intervals at level cl.

Default is 0.95 The TObject parameter can be a TGraphErrors, a TGraph2DErrors or a TH123. For Graphs, confidence intervals are computed for each point, the value of the graph at that point is set to the function value at that point, and the graph y-errors (or z-errors) are set to the value of the confidence interval at that point For Histograms, confidence intervals are computed for each bin center The bin content of this bin is then set to the function value at the bin center, and the bin error is set to the confidence interval value. Allowed combinations: Fitted object Passed object TGraph TGraphErrors, TH1 TGraphErrors, AsymmErrors TGraphErrors, TH1 TH1 TGraphErrors, TH1 TGraph2D TGraph2DErrors, TH2 TGraph2DErrors TGraph2DErrors, TH2 TH2 TGraph2DErrors, TH2 TH3 TH3

Reimplemented from TVirtualFitter.

Definition at line 1024 of file TLinearFitter.cxx.

GetCovarianceMatrix() [1/2]

Double_t * TLinearFitter::GetCovarianceMatrix ( ) const

overridevirtual

Returns covariance matrix.

Implements TVirtualFitter.

Definition at line 1173 of file TLinearFitter.cxx.

GetCovarianceMatrix() [2/2]

void TLinearFitter::GetCovarianceMatrix ( TMatrixD & matr )

virtual

Returns covariance matrix.

Definition at line 1182 of file TLinearFitter.cxx.

GetCovarianceMatrixElement()

Double_t TLinearFitter::GetCovarianceMatrixElement ( Int_t i, Int_t j ) const

inlineoverridevirtual

Implements TVirtualFitter.

Definition at line 242 of file TLinearFitter.h.

GetDefaultFitter()

const char * TVirtualFitter::GetDefaultFitter ( )

staticinherited

static: return the name of the default fitter

Definition at line 150 of file TVirtualFitter.cxx.

GetDesignMatrix()

void TLinearFitter::GetDesignMatrix ( TMatrixD & matr )

virtual

Returns the internal design matrix.

Definition at line 1193 of file TLinearFitter.cxx.

GetDrawOption()

Option_t * TObject::GetDrawOption ( ) const

virtualinherited

Get option used by the graphics system to draw this object.

Note that before calling object.GetDrawOption(), you must have called object.Draw(..) before in the current pad.

Reimplemented in TBrowser, TFitEditor, TGedFrame, TGFileBrowser, TRootBrowser, and TRootBrowserLite.

Definition at line 445 of file TObject.cxx.

GetDtorOnly()

Longptr_t TObject::GetDtorOnly ( )

staticinherited

Return destructor only flag.

Definition at line 1196 of file TObject.cxx.

GetErrorDef()

Double_t TVirtualFitter::GetErrorDef ( )

staticinherited

static: Return the Error Definition

Definition at line 177 of file TVirtualFitter.cxx.

GetErrors() [1/2]

Int_t TLinearFitter::GetErrors ( Int_t , Double_t & , Double_t & , Double_t & , Double_t &  ) const

inlineoverridevirtual

Implements TVirtualFitter.

Definition at line 271 of file TLinearFitter.h.

GetErrors() [2/2]

void TLinearFitter::GetErrors ( TVectorD & vpar )

virtual

Returns parameter errors.

Definition at line 1204 of file TLinearFitter.cxx.

GetFCN()

virtual FCNFunc_t TVirtualFitter::GetFCN ( )

inlinevirtualinherited

Definition at line 72 of file TVirtualFitter.h.

GetFitOption()

virtual Foption_t TVirtualFitter::GetFitOption ( ) const

inlinevirtualinherited

Definition at line 73 of file TVirtualFitter.h.

GetFitSample()

void TLinearFitter::GetFitSample ( TBits & bits )

virtual

For robust lts fitting, returns the sample, on which the best fit was based.

Definition at line 1303 of file TLinearFitter.cxx.

GetFitter()

TVirtualFitter * TVirtualFitter::GetFitter ( )

staticinherited

static: return the current Fitter

Definition at line 159 of file TVirtualFitter.cxx.

GetIconName()

const char * TObject::GetIconName ( ) const

virtualinherited

Returns mime type name of object.

Used by the TBrowser (via TGMimeTypes class). Override for class of which you would like to have different icons for objects of the same class.

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TASImage, TBranch, TBranchElement, TGeoVolume, TGMainFrame, TKey, TMethodBrowsable, TSystemFile, and TVirtualBranchBrowsable.

Definition at line 472 of file TObject.cxx.

GetMaxIterations()

Int_t TVirtualFitter::GetMaxIterations ( )

staticinherited

static: Return the maximum number of iterations actually max number of function calls

Definition at line 168 of file TVirtualFitter.cxx.

GetMethodCall()

TMethodCall * TVirtualFitter::GetMethodCall ( ) const

inlineinherited

Definition at line 74 of file TVirtualFitter.h.

GetName()

const char * TNamed::GetName ( ) const

inlineoverridevirtualinherited

Returns name of object.

This default method returns the class name. Classes that give objects a name should override this method.

Reimplemented from TObject.

Definition at line 49 of file TNamed.h.

GetNpoints()

virtual Int_t TLinearFitter::GetNpoints ( )

inlinevirtual

Definition at line 247 of file TLinearFitter.h.

GetNumberFreeParameters()

Int_t TLinearFitter::GetNumberFreeParameters ( ) const

inlineoverridevirtual

Implements TVirtualFitter.

Definition at line 246 of file TLinearFitter.h.

GetNumberTotalParameters()

Int_t TLinearFitter::GetNumberTotalParameters ( ) const

inlineoverridevirtual

Implements TVirtualFitter.

Definition at line 245 of file TLinearFitter.h.

GetObjectFit()

virtual TObject * TVirtualFitter::GetObjectFit ( ) const

inlinevirtualinherited

Definition at line 77 of file TVirtualFitter.h.

GetObjectInfo()

char * TObject::GetObjectInfo ( Int_t px, Int_t py ) const

virtualinherited

Returns string containing info about the object at position (px,py).

This method is typically overridden by classes of which the objects can report peculiarities for different positions. Returned string will be re-used (lock in MT environment).

Reimplemented in TASImage, TAxis3D, TColorWheel, TF1, TF2, TFileDrawMap, TGeoNode, TGeoTrack, TGeoVolume, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLTH3Composition, TGraph, TH1, THistPainter, TNode, TPaletteAxis, TParallelCoordVar, and TVirtualHistPainter.

Definition at line 491 of file TObject.cxx.

GetObjectStat()

Bool_t TObject::GetObjectStat ( )

staticinherited

Get status of object stat flag.

Definition at line 1181 of file TObject.cxx.

GetOption()

virtual Option_t * TObject::GetOption ( ) const

inlinevirtualinherited

Reimplemented in TArrow, TAxis3D, TFile, TGaxis, TGeoVolume, TH1, THelix, TLegendEntry, TMapFile, TNode, TPave, TPoints3DABC, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPSocket, TSelector, TSocket, and TUDPSocket.

Definition at line 147 of file TObject.h.

GetParameter() [1/2]

Double_t TLinearFitter::GetParameter ( Int_t ipar ) const

inlineoverridevirtual

Implements TVirtualFitter.

Definition at line 249 of file TLinearFitter.h.

GetParameter() [2/2]

Int_t TLinearFitter::GetParameter ( Int_t ipar, char * name, Double_t & value, Double_t & , Double_t & , Double_t &  ) const

overridevirtual

Returns the value and the name of the parameter #ipar NB: In the calling function the argument name must be set large enough.

Implements TVirtualFitter.

Definition at line 1229 of file TLinearFitter.cxx.

GetParameters()

void TLinearFitter::GetParameters ( TVectorD & vpar )

virtual

Returns parameter values.

Definition at line 1217 of file TLinearFitter.cxx.

GetParError()

Double_t TLinearFitter::GetParError ( Int_t ipar ) const

overridevirtual

Returns the error of parameter #ipar.

Implements TVirtualFitter.

Definition at line 1247 of file TLinearFitter.cxx.

GetParName()

const char * TLinearFitter::GetParName ( Int_t ipar ) const

overridevirtual

Returns name of parameter #ipar.

Implements TVirtualFitter.

Definition at line 1261 of file TLinearFitter.cxx.

GetParSignificance()

Double_t TLinearFitter::GetParSignificance ( Int_t ipar )

virtual

Returns the significance of parameter #ipar.

Definition at line 1289 of file TLinearFitter.cxx.

GetParTValue()

Double_t TLinearFitter::GetParTValue ( Int_t ipar )

virtual

Returns the t-value for parameter #ipar.

Definition at line 1275 of file TLinearFitter.cxx.

GetPrecision()

Double_t TVirtualFitter::GetPrecision ( )

staticinherited

static: Return the fit relative precision

Definition at line 186 of file TVirtualFitter.cxx.

GetStats()

Int_t TLinearFitter::GetStats ( Double_t & , Double_t & , Double_t & , Int_t & , Int_t &  ) const

inlineoverridevirtual

Implements TVirtualFitter.

Definition at line 273 of file TLinearFitter.h.

GetSumLog()

Double_t TLinearFitter::GetSumLog ( Int_t )

inlineoverridevirtual

Implements TVirtualFitter.

Definition at line 274 of file TLinearFitter.h.

GetTitle()

const char * TNamed::GetTitle ( ) const

inlineoverridevirtualinherited

Returns title of object.

This default method returns the class title (i.e. description). Classes that give objects a title should override this method.

Reimplemented from TObject.

Definition at line 50 of file TNamed.h.

GetUniqueID()

UInt_t TObject::GetUniqueID ( ) const

virtualinherited

Return the unique object id.

Definition at line 480 of file TObject.cxx.

GetUserFunc()

virtual TObject * TVirtualFitter::GetUserFunc ( ) const

inlinevirtualinherited

Definition at line 84 of file TVirtualFitter.h.

GetXfirst()

virtual Int_t TVirtualFitter::GetXfirst ( ) const

inlinevirtualinherited

Definition at line 85 of file TVirtualFitter.h.

GetXlast()

virtual Int_t TVirtualFitter::GetXlast ( ) const

inlinevirtualinherited

Definition at line 86 of file TVirtualFitter.h.

GetY2()

virtual Double_t TLinearFitter::GetY2 ( ) const

inlinevirtual

Definition at line 256 of file TLinearFitter.h.

GetYfirst()

virtual Int_t TVirtualFitter::GetYfirst ( ) const

inlinevirtualinherited

Definition at line 87 of file TVirtualFitter.h.

GetYlast()

virtual Int_t TVirtualFitter::GetYlast ( ) const

inlinevirtualinherited

Definition at line 88 of file TVirtualFitter.h.

GetZfirst()

virtual Int_t TVirtualFitter::GetZfirst ( ) const

inlinevirtualinherited

Definition at line 89 of file TVirtualFitter.h.

GetZlast()

virtual Int_t TVirtualFitter::GetZlast ( ) const

inlinevirtualinherited

Definition at line 90 of file TVirtualFitter.h.

Graph2DLinearFitter()

Int_t TLinearFitter::Graph2DLinearFitter ( Double_t h )

private

Minimisation function for a TGraph2D.

Definition at line 1704 of file TLinearFitter.cxx.

GraphLinearFitter()

Int_t TLinearFitter::GraphLinearFitter ( Double_t h )

private

Used in TGraph::Fit().

Definition at line 1642 of file TLinearFitter.cxx.

HandleTimer()

Bool_t TObject::HandleTimer ( TTimer * timer )

virtualinherited

Execute action in response of a timer timing out.

This method must be overridden if an object has to react to timers.

Reimplemented in TGCommandPlugin, TGDNDManager, TGFileContainer, TGHtml, TGLEventHandler, TGPopupMenu, TGraphTime, TGScrollBar, TGShutter, TGTextEdit, TGTextEditor, TGTextEntry, TGTextView, TGToolTip, TGuiBldDragManager, TGWindow, and TTreeViewer.

Definition at line 516 of file TObject.cxx.

Hash()

ULong_t TNamed::Hash ( ) const

inlineoverridevirtualinherited

Return hash value for this object.

Note: If this routine is overloaded in a derived class, this derived class should also add

ROOT::CallRecursiveRemoveIfNeeded(*this)

Otherwise, when RecursiveRemove is called (by ~TObject or example) for this type of object, the transversal of THashList and THashTable containers will will have to be done without call Hash (and hence be linear rather than logarithmic complexity). You will also see warnings like

Error in <ROOT::Internal::TCheckHashRecursiveRemoveConsistency::CheckRecursiveRemove>: The class SomeName overrides
TObject::Hash but does not call TROOT::RecursiveRemove in its destructor.

Reimplemented from TObject.

Definition at line 51 of file TNamed.h.

HasInconsistentHash()

Bool_t TObject::HasInconsistentHash ( ) const

inlineinherited

Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

missing call to RecursiveRemove in destructor).

Note: Since the consistency is only tested for during inserts, this routine will return true for object that have never been inserted whether or not they have a consistent setup. This has no negative side-effect as searching for the object with the right or wrong Hash will always yield a not-found answer (Since anyway no hash can be guaranteed unique, there is always a check)

Definition at line 366 of file TObject.h.

HistLinearFitter()

Int_t TLinearFitter::HistLinearFitter ( )

private

Minimization function for H1s using a Chisquare method.

Definition at line 1848 of file TLinearFitter.cxx.

Info()

void TObject::Info ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue info message.

Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.

Definition at line 1072 of file TObject.cxx.

InheritsFrom() [1/2]

Bool_t TObject::InheritsFrom ( const char * classname ) const

virtualinherited

Returns kTRUE if object inherits from class "classname".

Reimplemented in TClass.

Definition at line 549 of file TObject.cxx.

InheritsFrom() [2/2]

Bool_t TObject::InheritsFrom ( const TClass * cl ) const

virtualinherited

Returns kTRUE if object inherits from TClass cl.

Reimplemented in TClass.

Definition at line 557 of file TObject.cxx.

Inspect()

void TObject::Inspect ( ) const

virtualinherited

Dump contents of this object in a graphics canvas.

Same action as Dump but in a graphical form. In addition pointers to other objects can be followed.

The following picture is the Inspect of a histogram object:

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TGFrame, TInspectorObject, and TSystemFile.

Definition at line 570 of file TObject.cxx.

InvertBit()

void TObject::InvertBit ( UInt_t f )

inlineinherited

Definition at line 206 of file TObject.h.

IsA()

TClass * TLinearFitter::IsA ( ) const

inlineoverridevirtual

Returns

TClass describing current object

Reimplemented from TObject.

Definition at line 278 of file TLinearFitter.h.

IsDestructed()

Bool_t TObject::IsDestructed ( ) const

inlineinherited

IsDestructed.

Note

This function must be non-virtual as it can be used on destructed (but not yet modified) memory. This is used for example in TClonesArray to record the element that have been destructed but not deleted and thus are ready for re-use (by operator new with placement).

Returns

true if this object's destructor has been run.

Definition at line 186 of file TObject.h.

IsEqual()

Bool_t TObject::IsEqual ( const TObject * obj ) const

virtualinherited

Default equal comparison (objects are equal if they have the same address in memory).

More complicated classes might want to override this function.

Reimplemented in TGObject, TObjString, TPair, and TQCommand.

Definition at line 589 of file TObject.cxx.

IsFixed()

Bool_t TLinearFitter::IsFixed ( Int_t ipar ) const

inlineoverridevirtual

Implements TVirtualFitter.

Definition at line 257 of file TLinearFitter.h.

IsFolder()

Bool_t TObject::IsFolder ( ) const

virtualinherited

Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, ROOT::Internal::THnBaseBrowsable, TApplicationRemote, TAxis3D, TBaseClass, TBranch, TBranchClones, TBranchElement, TBranchObject, TBranchSTL, TBrowserObject, TCanvas, TClass, TCollection, TDatabasePDG, TDirectory, TFolder, TGeoManager, TGeometry, TGeoNode, TGeoNodeMatrix, TGeoOverlap, TGeoTrack, TGeoVolume, THbookFile, THbookKey, THnBase, TKey, TMapFile, TMultiDimFit, TNode, TPad, TPair, TParticleClassPDG, TPrincipal, TRemoteObject, TROOT, TRootIconList, TSPlot, TSystemDirectory, TTask, TTree, and TVirtualBranchBrowsable.

Definition at line 579 of file TObject.cxx.

IsOnHeap()

Bool_t TObject::IsOnHeap ( ) const

inlineinherited

Definition at line 160 of file TObject.h.

IsSortable()

Bool_t TNamed::IsSortable ( ) const

inlineoverridevirtualinherited

Reimplemented from TObject.

Reimplemented in TStructNodeProperty.

Definition at line 52 of file TNamed.h.

IsZombie()

Bool_t TObject::IsZombie ( ) const

inlineinherited

Definition at line 161 of file TObject.h.

Linf()

Bool_t TLinearFitter::Linf ( )

private

Definition at line 2389 of file TLinearFitter.cxx.

ls()

void TNamed::ls ( Option_t * option = "" ) const

overridevirtualinherited

List TNamed name and title.

Reimplemented from TObject.

Reimplemented in ROOT::Experimental::XRooFit::xRooBrowser, TNode, TROOT, TStreamerBase, TStreamerElement, TStreamerInfo, TStreamerSTL, TTask, TText, and TVirtualStreamerInfo.

Definition at line 112 of file TNamed.cxx.

MakeZombie()

void TObject::MakeZombie ( )

inlineprotectedinherited

Definition at line 55 of file TObject.h.

MayNotUse()

void TObject::MayNotUse ( const char * method ) const

inherited

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).

Definition at line 1160 of file TObject.cxx.

Merge()

Int_t TLinearFitter::Merge ( TCollection * list )

virtual

Merge objects in list.

Definition at line 1317 of file TLinearFitter.cxx.

MultiGraphLinearFitter()

Int_t TLinearFitter::MultiGraphLinearFitter ( Double_t h )

private

Minimisation function for a TMultiGraph.

Definition at line 1777 of file TLinearFitter.cxx.

Notify()

Bool_t TObject::Notify ( )

virtualinherited

This method must be overridden to handle object notification (the base implementation is no-op).

Different objects in ROOT use the Notify method for different purposes, in coordination with other objects that call this method at the appropriate time.

For example, TLeaf uses it to load class information; TBranchRef to load contents of referenced branches TBranchRef; most notably, based on Notify, TChain implements a callback mechanism to inform interested parties when it switches to a new sub-tree.

Reimplemented in h1analysis, h1analysisTreeReader, TARInterruptHandler, TASInputHandler, TASInterruptHandler, TASLogHandler, TASSigPipeHandler, TBlinkTimer, TBranchElement, TBranchRef, TBreakLineCom, TBrowserTimer, TCollection, TDelCharCom, TDelTextCom, TFileHandler, TGContainerKeyboardTimer, TGContainerScrollTimer, TGInputHandler, TGLRedrawTimer, TGTextEditHist, TGuiBldDragManagerRepeatTimer, TIdleTimer, TInsCharCom, TInsTextCom, TInterruptHandler, TLeafObject, TMessageHandler, TNotifyLink< Type >, TNotifyLink< RNoCleanupNotifierHelper >, TNotifyLink< ROOT::Detail::TBranchProxy >, TNotifyLink< TTreeReader >, TPopupDelayTimer, TProcessEventTimer, TRefTable, TRepeatTimer, TSBRepeatTimer, TSelector, TSelectorDraw, TSelectorEntries, TSignalHandler, TSingleShotCleaner, TSocketHandler, TStdExceptionHandler, TSysEvtHandler, TTermInputHandler, TThreadTimer, TTimeOutTimer, TTimer, TTipDelayTimer, TTree, TTreeFormula, TTreeFormulaManager, TTreeReader, TViewTimer, and TViewUpdateTimer.

Definition at line 618 of file TObject.cxx.

Obsolete()

void TObject::Obsolete ( const char * method, const char * asOfVers, const char * removedFromVers ) const

inherited

Use this method to declare a method obsolete.

Specify as of which version the method is obsolete and as from which version it will be removed.

Definition at line 1169 of file TObject.cxx.

operator delete() [1/3]

void TObject::operator delete ( void * ptr, size_t size )

inherited

Operator delete for sized deallocation.

Definition at line 1234 of file TObject.cxx.

operator delete() [2/3]

void TObject::operator delete ( void * ptr )

inherited

Operator delete.

Definition at line 1212 of file TObject.cxx.

operator delete() [3/3]

void TObject::operator delete ( void * ptr, void * vp )

inherited

Only called by placement new when throwing an exception.

Definition at line 1266 of file TObject.cxx.

operator delete[]() [1/3]

void TObject::operator delete[] ( void * ptr, size_t size )

inherited

Operator delete [] for sized deallocation.

Definition at line 1245 of file TObject.cxx.

operator delete[]() [2/3]

void TObject::operator delete[] ( void * ptr )

inherited

Operator delete [].

Definition at line 1223 of file TObject.cxx.

operator delete[]() [3/3]

void TObject::operator delete[] ( void * ptr, void * vp )

inherited

Only called by placement new[] when throwing an exception.

Definition at line 1274 of file TObject.cxx.

operator new() [1/2]

void * TObject::operator new ( size_t sz )

inlineinherited

Definition at line 189 of file TObject.h.

operator new() [2/2]

void * TObject::operator new ( size_t sz, void * vp )

inlineinherited

Definition at line 191 of file TObject.h.

operator new[]() [1/2]

void * TObject::operator new[] ( size_t sz )

inlineinherited

Definition at line 190 of file TObject.h.

operator new[]() [2/2]

void * TObject::operator new[] ( size_t sz, void * vp )

inlineinherited

Definition at line 192 of file TObject.h.

operator=()

TLinearFitter & TLinearFitter::operator= ( const TLinearFitter & )

privatedelete

Paint()

void TObject::Paint ( Option_t * option = "" )

virtualinherited

This method must be overridden if a class wants to paint itself.

The difference between Paint() and Draw() is that when a object draws itself it is added to the display list of the pad in which it is drawn (and automatically redrawn whenever the pad is redrawn). While paint just draws the object without adding it to the pad display list.

Reimplemented in ROOT::Experimental::RTreeMapPainter, ROOT::RGeoPainter, TAnnotation, TArrow, TASImage, TASPaletteEditor::LimitLine, TASPaletteEditor::PaintPalette, TAxis3D, TBits, TBox, TButton, TCanvas, TClassTree, TCollection, TColorWheel, TCrown, TDiamond, TDirectory, TEfficiency, TEllipse, TEveArrow, TEveCaloViz, TEveDigitSet, TEveGeoShape, TEveGeoTopNode, TEvePlot3D, TEvePointSet, TEveProjectionAxes, TEveScene, TEveShape, TEveStraightLineSet, TEveText, TEveTriangleSet, TExec, TF1, TF2, TF3, TFile, TFileDrawMap, TFrame, TGaxis, TGenerator, TGeoBoolNode, TGeoIntersection, TGeoNode, TGeoOverlap, TGeoPainter, TGeoPhysicalNode, TGeoShape, TGeoSubtraction, TGeoTrack, TGeoUnion, TGeoVGShape, TGeoVolume, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLTH3Composition, TGraph2D, TGraph2DPainter, TGraph, TGraphEdge, TGraphNode, TGraphPolargram, TGraphTime, TH1, THistPainter, THStack, TLatex, TLegend, TLine, TMacro, TMarker3DBox, TMarker, TMathText, TMultiGraph, TNode, TNodeDiv, TPad, TPaletteAxis, TParallelCoord, TParallelCoordRange, TParallelCoordVar, TParticle, TPave, TPaveLabel, TPaveStats, TPavesText, TPaveText, TPie, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TPrimary, TRatioPlot, TScatter2D, TScatter, TShape, TSpectrum2Painter, TSpider, TSpline, TSQLFile, TStyle, TText, TTreePerfStats, TVirtualGeoPainter, TVirtualGeoTrack, TVirtualHistPainter, TVirtualPad, TWbox, and TXMLFile.

Definition at line 631 of file TObject.cxx.

Partition()

Int_t TLinearFitter::Partition ( Int_t nmini, Int_t * indsubdat )

private

divides the elements into approximately equal subgroups number of elements in each subgroup is stored in indsubdat number of subgroups is returned

Definition at line 2428 of file TLinearFitter.cxx.

Pop()

void TObject::Pop ( )

virtualinherited

Pop on object drawn in a pad to the top of the display list.

I.e. it will be drawn last and on top of all other primitives.

Reimplemented in TFrame, TPad, and TVirtualPad.

Definition at line 640 of file TObject.cxx.

Print()

void TNamed::Print ( Option_t * option = "" ) const

overridevirtualinherited

Print TNamed name and title.

Reimplemented from TObject.

Reimplemented in ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoPoint, ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoSpace, ROOT::Experimental::XRooFit::xRooNode, TParallelCoordRange, TParallelCoordVar, TParticleClassPDG, TParticlePDG, TPrincipal, TScatter2D, TScatter, TSpectrum2, TSpectrum3, TSpectrum, TSQLColumnInfo, TSQLFile, TSQLTableInfo, TText, TTree, TTreeIndex, TXMLFile, and TXTRU.

Definition at line 127 of file TNamed.cxx.

PrintResults()

void TLinearFitter::PrintResults ( Int_t level, Double_t amin = 0 ) const

overridevirtual

Level = 3 (to be consistent with minuit) prints parameters and parameter errors.

Implements TVirtualFitter.

Definition at line 1622 of file TLinearFitter.cxx.

RDraw()

void TLinearFitter::RDraw ( Int_t * subdat, Int_t * indsubdat )

private

Draws ngroup nonoverlapping subdatasets out of a dataset of size n such that the selected case numbers are uniformly distributed from 1 to n.

Definition at line 2480 of file TLinearFitter.cxx.

Read()

Int_t TObject::Read ( const char * name )

virtualinherited

Read contents of object with specified name from the current directory.

First the key with the given name is searched in the current directory, next the key buffer is deserialized into the object. The object must have been created before via the default constructor. See TObject::Write().

Reimplemented in TBuffer, TKey, TKeySQL, and TKeyXML.

Definition at line 673 of file TObject.cxx.

RecursiveRemove()

void TObject::RecursiveRemove ( TObject * obj )

virtualinherited

Recursively remove this object from a list.

Typically implemented by classes that can contain multiple references to a same object.

Reimplemented in RooAbsCollection, RooAbsData, RooLinkedList, RooMCStudy, ROOT::Internal::TCheckHashRecursiveRemoveConsistency, ROOT::RBrowserDataCleanup, RooWorkspace, TBrowser, TChain, TCling, TCollection, TDialogCanvas, TDirectory, TEfficiency, TFileMerger, TFitEditor, TFolder, TFriendElement, TGedEditor, TGeometry, TGFileBrowser, TGraph2D, TGraph, TH1, TH1Editor, TH2Editor, THashList, THistPainter, THStack, TInspectCanvas, TLegend, TList, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TMultiGraph, TNode, TObjArray, TObjectRefSpy, TObjectSpy, TPad, TProcessID, TROOT, TRootBrowser, TRootBrowserHistory, TRootBrowserLite, TRootContextMenu, TTree, TTreePlayer, TViewPubDataMembers, TViewPubFunctions, and TVirtualPad.

Definition at line 684 of file TObject.cxx.

ReleaseParameter()

void TLinearFitter::ReleaseParameter ( Int_t ipar )

overridevirtual

Releases parameter #ipar.

Implements TVirtualFitter.

Definition at line 922 of file TLinearFitter.cxx.

ResetBit()

void TObject::ResetBit ( UInt_t f )

inlineinherited

Definition at line 203 of file TObject.h.

SaveAs()

void TObject::SaveAs ( const char * filename = "", Option_t * option = "" ) const

virtualinherited

Save this object in the file specified by filename.

• if "filename" contains ".root" the object is saved in filename as root binary file.
• if "filename" contains ".xml" the object is saved in filename as a xml ascii file.
• if "filename" contains ".cc" the object is saved in filename as C code independent from ROOT. The code is generated via SavePrimitive(). Specific code should be implemented in each object to handle this option. Like in TF1::SavePrimitive().

• otherwise the object is written to filename as a CINT/C++ script. The C++ code to rebuild this object is generated via SavePrimitive(). The "option" parameter is passed to SavePrimitive. By default it is an empty string. It can be used to specify the Draw option in the code generated by SavePrimitive.

  The function is available via the object context menu.

Reimplemented in ROOT::Experimental::XRooFit::xRooNode, TClassTree, TFolder, TGeoVolume, TGObject, TGraph, TH1, TPad, TPaveClass, TSpline3, TSpline5, TSpline, TTreePerfStats, and TVirtualPad.

Definition at line 708 of file TObject.cxx.

SavePrimitive()

void TObject::SavePrimitive ( std::ostream & out, Option_t * option = "" )

virtualinherited

Save a primitive as a C++ statement(s) on output stream "out".

Reimplemented in TAnnotation, TArc, TArrow, TASImage, TAxis3D, TBox, TButton, TCanvas, TChain, TCrown, TCurlyArc, TCurlyLine, TCutG, TDiamond, TEfficiency, TEllipse, TExec, TF12, TF1, TF2, TF3, TFrame, TGaxis, TGButton, TGButtonGroup, TGCanvas, TGCheckButton, TGColorSelect, TGColumnLayout, TGComboBox, TGCompositeFrame, TGContainer, TGDockableFrame, TGDoubleHSlider, TGDoubleVSlider, TGedMarkerSelect, TGedPatternSelect, TGeoArb8, TGeoBBox, TGeoBoolNode, TGeoCombiTrans, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoCtub, TGeoDecayChannel, TGeoElementRN, TGeoEltu, TGeoGtra, TGeoHalfSpace, TGeoHMatrix, TGeoHype, TGeoIdentity, TGeoIntersection, TGeoMaterial, TGeoMedium, TGeoMixture, TGeoPara, TGeoParaboloid, TGeoPatternCylPhi, TGeoPatternCylR, TGeoPatternParaX, TGeoPatternParaY, TGeoPatternParaZ, TGeoPatternSphPhi, TGeoPatternSphR, TGeoPatternSphTheta, TGeoPatternTrapZ, TGeoPatternX, TGeoPatternY, TGeoPatternZ, TGeoPcon, TGeoPgon, TGeoRotation, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoSubtraction, TGeoTessellated, TGeoTorus, TGeoTranslation, TGeoTrap, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoUnion, TGeoVolume, TGeoXtru, TGFileContainer, TGFont, TGFrame, TGFSComboBox, TGGC, TGGroupFrame, TGHButtonGroup, TGHorizontal3DLine, TGHorizontalFrame, TGHorizontalLayout, TGHProgressBar, TGHScrollBar, TGHSlider, TGHSplitter, TGHtml, TGIcon, TGLabel, TGLayoutHints, TGLineStyleComboBox, TGLineWidthComboBox, TGListBox, TGListDetailsLayout, TGListLayout, TGListTree, TGListView, TGLVContainer, TGMainFrame, TGMatrixLayout, TGMdiFrame, TGMdiMainFrame, TGMdiMenuBar, TGMenuBar, TGMenuTitle, TGNumberEntry, TGNumberEntryField, TGPictureButton, TGPopupMenu, TGProgressBar, TGRadioButton, TGraph2D, TGraph2DAsymmErrors, TGraph2DErrors, TGraph, TGraphAsymmErrors, TGraphBentErrors, TGraphEdge, TGraphErrors, TGraphMultiErrors, TGraphNode, TGraphPolar, TGraphPolargram, TGraphStruct, TGroupButton, TGRowLayout, TGShapedFrame, TGShutter, TGShutterItem, TGSplitFrame, TGStatusBar, TGTab, TGTabLayout, TGTableLayout, TGTableLayoutHints, TGTextButton, TGTextEdit, TGTextEntry, TGTextLBEntry, TGTextView, TGTileLayout, TGToolBar, TGTransientFrame, TGTripleHSlider, TGTripleVSlider, TGVButtonGroup, TGVertical3DLine, TGVerticalFrame, TGVerticalLayout, TGVFileSplitter, TGVProgressBar, TGVScrollBar, TGVSlider, TGVSplitter, TGXYLayout, TGXYLayoutHints, TH1, TH2Poly, THelix, THStack, TLatex, TLegend, TLine, TMacro, TMarker3DBox, TMarker, TMathText, TMultiGraph, TPad, TPaletteAxis, TParallelCoord, TParallelCoordVar, TPave, TPaveClass, TPaveLabel, TPaveStats, TPavesText, TPaveText, TPie, TPieSlice, TPolyLine3D, TPolyLine, TPolyMarker3D, TPolyMarker, TProfile2D, TProfile3D, TProfile, TRootContainer, TRootEmbeddedCanvas, TScatter2D, TScatter, TSlider, TSliderBox, TSpline3, TSpline5, TStyle, TText, TTreePerfStats, and TWbox.

Definition at line 858 of file TObject.cxx.

SavePrimitiveConstructor()

void TObject::SavePrimitiveConstructor ( std::ostream & out, TClass * cl, const char * variable_name, const char * constructor_agrs = "", Bool_t empty_line = kTRUE )

staticprotectedinherited

Save object constructor in the output stream "out".

Can be used as first statement when implementing SavePrimitive() method for the object

Definition at line 777 of file TObject.cxx.

SavePrimitiveDraw()

void TObject::SavePrimitiveDraw ( std::ostream & out, const char * variable_name, Option_t * option = nullptr )

staticprotectedinherited

Save invocation of primitive Draw() method Skipped if option contains "nodraw" string.

Definition at line 845 of file TObject.cxx.

SavePrimitiveNameTitle()

void TNamed::SavePrimitiveNameTitle ( std::ostream & out, const char * variable_name )

protectedinherited

Save object name and title into the output stream "out".

Definition at line 135 of file TNamed.cxx.

SavePrimitiveVector()

TString TObject::SavePrimitiveVector ( std::ostream & out, const char * prefix, Int_t len, Double_t * arr, Int_t flag = 0 )

staticprotectedinherited

Save array in the output stream "out" as vector.

Create unique variable name based on prefix value Returns name of vector which can be used in constructor or in other places of C++ code If flag === kTRUE, just add empty line If flag === 111, check if array is empty and return nullptr or <vectorname>.data()

Definition at line 796 of file TObject.cxx.

SetBasisFunctions()

void TLinearFitter::SetBasisFunctions ( TObjArray * functions )

virtual

set the basis functions in case the fitting function is not set directly The TLinearFitter will manage and delete the functions contained in the list

Definition at line 1336 of file TLinearFitter.cxx.

SetBit() [1/2]

void TObject::SetBit ( UInt_t f )

inlineinherited

Definition at line 202 of file TObject.h.

SetBit() [2/2]

void TObject::SetBit ( UInt_t f, Bool_t set )

inherited

Set or unset the user status bits as specified in f.

Definition at line 888 of file TObject.cxx.

SetCache()

Double_t * TVirtualFitter::SetCache ( Int_t npoints, Int_t psize )

virtualinherited

Initialize the cache array npoints is the number of points to be stored (or already stored) in the cache psize is the number of elements per point.

if (npoints*psize > fCacheSize) the existing cache is deleted and a new array is created. The function returns a pointer to the cache

Definition at line 231 of file TVirtualFitter.cxx.

SetDefaultFitter()

void TVirtualFitter::SetDefaultFitter ( const char * name = "" )

staticinherited

static: set name of default fitter

Definition at line 195 of file TVirtualFitter.cxx.

SetDim()

void TLinearFitter::SetDim ( Int_t n )

virtual

set the number of dimensions

Definition at line 1376 of file TLinearFitter.cxx.

SetDrawOption()

void TObject::SetDrawOption ( Option_t * option = "" )

virtualinherited

Set drawing option for object.

This option only affects the drawing style and is stored in the option field of the TObjOptLink supporting a TPad's primitive list (TList). Note that it does not make sense to call object.SetDrawOption(option) before having called object.Draw().

Reimplemented in RooPlot, TAxis, TBrowser, TGedFrame, TGFrame, TPad, TPaveStats, TRootBrowserLite, TSystemDirectory, and TSystemFile.

Definition at line 871 of file TObject.cxx.

SetDtorOnly()

void TObject::SetDtorOnly ( void * obj )

staticinherited

Set destructor only flag.

Definition at line 1204 of file TObject.cxx.

SetErrorDef()

void TVirtualFitter::SetErrorDef ( Double_t errdef = 1 )

staticinherited

static: Set the Error Definition (default=1) For Minuit this is the value passed with the "SET ERR" command (see https://cern-tex.web.cern.ch/cern-tex/minuit/node18.html)

Definition at line 258 of file TVirtualFitter.cxx.

SetFCN()

void TVirtualFitter::SetFCN ( void(* fcn )(Int_t &, Double_t *, Double_t &f, Double_t *, Int_t) )

virtualinherited

To set the address of the minimization objective function called by the native compiler (see function below when called by Cling).

Reimplemented in TBackCompFitter, and TFitter.

Definition at line 217 of file TVirtualFitter.cxx.

SetFitMethod()

void TLinearFitter::SetFitMethod ( const char * )

inlineoverridevirtual

Implements TVirtualFitter.

Definition at line 275 of file TLinearFitter.h.

SetFitOption()

virtual void TVirtualFitter::SetFitOption ( Foption_t option )

inlinevirtualinherited

Definition at line 97 of file TVirtualFitter.h.

SetFitter()

void TVirtualFitter::SetFitter ( TVirtualFitter * fitter, Int_t maxpar = 25 )

staticinherited

Static function to set an alternative fitter.

Definition at line 207 of file TVirtualFitter.cxx.

SetFormula() [1/2]

void TLinearFitter::SetFormula ( const char * formula )

virtual

Additive parts should be separated by "++".

Examples (ai are parameters to fit): 1.fitting function: a0*x0 + a1*x1 + a2*x2 input formula "x[0]++x[1]++x[2]" 2.TMath functions can be used: fitting function: a0*TMath::Gaus(x, 0, 1) + a1*y input formula: "TMath::Gaus(x, 0, 1)++y" fills the array of functions

Definition at line 1397 of file TLinearFitter.cxx.

SetFormula() [2/2]

void TLinearFitter::SetFormula ( TFormula * function )

virtual

Set the fitting function.

Definition at line 1516 of file TLinearFitter.cxx.

SetMaxIterations()

void TVirtualFitter::SetMaxIterations ( Int_t niter = 5000 )

staticinherited

static: Set the maximum number of function calls for the minimization algorithm For example for MIGRAD this is the maxcalls value passed as first argument (see https://cern-tex.web.cern.ch/cern-tex/minuit/node18.html )

Definition at line 248 of file TVirtualFitter.cxx.

SetName()

void TNamed::SetName ( const char * name )

virtualinherited

Set the name of the TNamed.

WARNING: if the object is a member of a THashTable or THashList container the container must be Rehash()'ed after SetName(). For example the list of objects in the current directory is a THashList.

Reimplemented in RooAbsArg, RooAbsData, RooDataHist, RooDataSet, RooFitResult, RooPlot, ROOT::Experimental::XRooFit::xRooNode, TChain, TColor, TDirectory, TEfficiency, TEventList, TEveScene, TFormula, TGraph2D, TGraph, TH1, TNode, TRotMatrix, TShape, TSystemDirectory, TSystemFile, and TTree.

Definition at line 149 of file TNamed.cxx.

SetNameTitle()

void TNamed::SetNameTitle ( const char * name, const char * title )

virtualinherited

Set all the TNamed parameters (name and title).

WARNING: if the name is changed and the object is a member of a THashTable or THashList container the container must be Rehash()'ed after SetName(). For example the list of objects in the current directory is a THashList.

Reimplemented in RooAbsArg, RooAbsData, RooDataHist, RooDataSet, RooFitResult, RooPlot, TContextMenu, TGraph2D, TGraph, TH1, and TNode.

Definition at line 163 of file TNamed.cxx.

SetObjectFit()

virtual void TVirtualFitter::SetObjectFit ( TObject * obj )

inlinevirtualinherited

Definition at line 98 of file TVirtualFitter.h.

SetObjectStat()

void TObject::SetObjectStat ( Bool_t stat )

staticinherited

Turn on/off tracking of objects in the TObjectTable.

Definition at line 1188 of file TObject.cxx.

SetParameter()

Int_t TLinearFitter::SetParameter ( Int_t , const char * , Double_t , Double_t , Double_t , Double_t  )

inlineoverridevirtual

Implements TVirtualFitter.

Definition at line 276 of file TLinearFitter.h.

SetPrecision()

void TVirtualFitter::SetPrecision ( Double_t prec = 1e-6 )

staticinherited

static: Set the tolerance used in the minimization algorithm For example for MIGRAD this is tolerance value passed as second argument (see https://cern-tex.web.cern.ch/cern-tex/minuit/node18.html )

Definition at line 273 of file TVirtualFitter.cxx.

SetTitle()

void TNamed::SetTitle ( const char * title = "" )

virtualinherited

Set the title of the TNamed.

Reimplemented in Axis2, RooPlot, ROOT::Experimental::XRooFit::xRooNode, ROOT::TSchemaRule::TSources, TASImage, TEfficiency, TF1, TGraph2D, TGraph, TH1, THnBase, TParallelCoordVar, TSystemDirectory, and TSystemFile.

Definition at line 173 of file TNamed.cxx.

SetUniqueID()

void TObject::SetUniqueID ( UInt_t uid )

virtualinherited

Set the unique object id.

Definition at line 899 of file TObject.cxx.

SetUserFunc()

virtual void TVirtualFitter::SetUserFunc ( TObject * userfunc )

inlinevirtualinherited

Definition at line 100 of file TVirtualFitter.h.

SetXfirst()

virtual void TVirtualFitter::SetXfirst ( Int_t first )

inlinevirtualinherited

Definition at line 101 of file TVirtualFitter.h.

SetXlast()

virtual void TVirtualFitter::SetXlast ( Int_t last )

inlinevirtualinherited

Definition at line 102 of file TVirtualFitter.h.

SetYfirst()

virtual void TVirtualFitter::SetYfirst ( Int_t first )

inlinevirtualinherited

Definition at line 103 of file TVirtualFitter.h.

SetYlast()

virtual void TVirtualFitter::SetYlast ( Int_t last )

inlinevirtualinherited

Definition at line 104 of file TVirtualFitter.h.

SetZfirst()

virtual void TVirtualFitter::SetZfirst ( Int_t first )

inlinevirtualinherited

Definition at line 105 of file TVirtualFitter.h.

SetZlast()

virtual void TVirtualFitter::SetZlast ( Int_t last )

inlinevirtualinherited

Definition at line 106 of file TVirtualFitter.h.

Sizeof()

Int_t TNamed::Sizeof ( ) const

virtualinherited

Return size of the TNamed part of the TObject.

Reimplemented in TDirectory, TDirectoryFile, TFile, TKey, TSQLFile, and TXMLFile.

Definition at line 182 of file TNamed.cxx.

StoreData()

virtual void TLinearFitter::StoreData ( Bool_t store )

inlinevirtual

Definition at line 265 of file TLinearFitter.h.

Streamer()

void TLinearFitter::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TObject.

Reimplemented from TObject.

Definition at line 1939 of file TLinearFitter.cxx.

StreamerNVirtual()

void TLinearFitter::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 278 of file TLinearFitter.h.

SysError()

void TObject::SysError ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue system error message.

Use "location" to specify the method where the system error occurred. Accepts standard printf formatting arguments.

Definition at line 1112 of file TObject.cxx.

TestBit()

Bool_t TObject::TestBit ( UInt_t f ) const

inlineinherited

Definition at line 204 of file TObject.h.

TestBits()

Int_t TObject::TestBits ( UInt_t f ) const

inlineinherited

Definition at line 205 of file TObject.h.

UpdateMatrix()

Bool_t TLinearFitter::UpdateMatrix ( )

virtual

Update the design matrix after the formula has been changed.

Definition at line 1583 of file TLinearFitter.cxx.

UseCurrentStyle()

void TObject::UseCurrentStyle ( )

virtualinherited

Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

Reimplemented in TAxis3D, TCanvas, TFrame, TGraph, TH1, TPad, TPaveStats, TPaveText, and TTree.

Definition at line 909 of file TObject.cxx.

Warning()

void TObject::Warning ( const char * location, const char * fmt, ... ) const

virtualinherited

Issue warning message.

Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.

Definition at line 1084 of file TObject.cxx.

Write() [1/2]

Int_t TObject::Write ( const char * name = nullptr, Int_t option = 0, Int_t bufsize = 0 )

virtualinherited

Write this object to the current directory.

For more see the const version of this method.

Reimplemented in ROOT::TBufferMergerFile, TBuffer, TCollection, TDirectory, TDirectoryFile, TFile, TMap, TParallelMergingFile, TSQLFile, TTree, and TXMLFile.

Definition at line 989 of file TObject.cxx.

Write() [2/2]

Int_t TObject::Write ( const char * name = nullptr, Int_t option = 0, Int_t bufsize = 0 ) const

virtualinherited

Write this object to the current directory.

The data structure corresponding to this object is serialized. The corresponding buffer is written to the current directory with an associated key with name "name".

Writing an object to a file involves the following steps:

• Creation of a support TKey object in the current directory. The TKey object creates a TBuffer object.
• The TBuffer object is filled via the class::Streamer function.
• If the file is compressed (default) a second buffer is created to hold the compressed buffer.
• Reservation of the corresponding space in the file by looking in the TFree list of free blocks of the file.
• The buffer is written to the file.

Bufsize can be given to force a given buffer size to write this object. By default, the buffersize will be taken from the average buffer size of all objects written to the current file so far.

If a name is specified, it will be the name of the key. If name is not given, the name of the key will be the name as returned by GetName().

The option can be a combination of: kSingleKey, kOverwrite or kWriteDelete Using the kOverwrite option a previous key with the same name is overwritten. The previous key is deleted before writing the new object. Using the kWriteDelete option a previous key with the same name is deleted only after the new object has been written. This option is safer than kOverwrite but it is slower. NOTE: Neither kOverwrite nor kWriteDelete reduces the size of a TFile– the space is simply freed up to be overwritten; in the case of a TTree, it is more complicated. If one opens a TTree, appends some entries, then writes it out, the behaviour is effectively the same. If, however, one creates a new TTree and writes it out in this way, only the metadata is replaced, effectively making the old data invisible without deleting it. TTree::Delete() can be used to mark all disk space occupied by a TTree as free before overwriting its metadata this way. The kSingleKey option is only used by TCollection::Write() to write a container with a single key instead of each object in the container with its own key.

An object is read from the file into memory via TKey::Read() or via TObject::Read().

The function returns the total number of bytes written to the file. It returns 0 if the object cannot be written.

Reimplemented in TBuffer, TCollection, TDirectory, TDirectoryFile, TFile, TMap, TParallelMergingFile, TSQLFile, TTree, and TXMLFile.

Definition at line 964 of file TObject.cxx.

Member Data Documentation

fAtb

TVectorD TLinearFitter::fAtb

private

Definition at line 165 of file TLinearFitter.h.

fAtbTemp

TVectorD TLinearFitter::fAtbTemp

private

! temporary vector, used for num.stability

Definition at line 166 of file TLinearFitter.h.

fAtbTemp2

TVectorD TLinearFitter::fAtbTemp2

private

!

Definition at line 167 of file TLinearFitter.h.

fAtbTemp3

TVectorD TLinearFitter::fAtbTemp3

private

!

Definition at line 168 of file TLinearFitter.h.

fBits

UInt_t TObject::fBits

privateinherited

bit field status word

Definition at line 47 of file TObject.h.

fCache

Double_t* TVirtualFitter::fCache

protectedinherited

[fCacheSize] Array of points data (fNpoints*fPointSize < fCacheSize words)

Definition at line 42 of file TVirtualFitter.h.

fCacheSize

Int_t TVirtualFitter::fCacheSize

protectedinherited

Size of the fCache array.

Definition at line 41 of file TVirtualFitter.h.

fChisquare

Double_t TLinearFitter::fChisquare

private

Definition at line 190 of file TLinearFitter.h.

fDesign

TMatrixDSym TLinearFitter::fDesign

private

Definition at line 160 of file TLinearFitter.h.

fDesignTemp

TMatrixDSym TLinearFitter::fDesignTemp

private

! temporary matrix, used for num.stability

Definition at line 161 of file TLinearFitter.h.

fDesignTemp2

TMatrixDSym TLinearFitter::fDesignTemp2

private

!

Definition at line 162 of file TLinearFitter.h.

fDesignTemp3

TMatrixDSym TLinearFitter::fDesignTemp3

private

!

Definition at line 163 of file TLinearFitter.h.

fE

TVectorD TLinearFitter::fE

private

Definition at line 176 of file TLinearFitter.h.

fFCN

void(* TVirtualFitter::fFCN) (Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag)

protectedinherited

Definition at line 46 of file TVirtualFitter.h.

fFitsample

TBits TLinearFitter::fFitsample

private

Definition at line 194 of file TLinearFitter.h.

fFixedParams

Bool_t* TLinearFitter::fFixedParams

private

Definition at line 196 of file TLinearFitter.h.

fFormula

char* TLinearFitter::fFormula

private

Definition at line 187 of file TLinearFitter.h.

fFormulaSize

Int_t TLinearFitter::fFormulaSize

private

Definition at line 182 of file TLinearFitter.h.

fFunctions

TObjArray TLinearFitter::fFunctions

private

Definition at line 171 of file TLinearFitter.h.

fgDtorOnly

Longptr_t TObject::fgDtorOnly = 0

staticprivateinherited

object for which to call dtor only (i.e. no delete)

Definition at line 49 of file TObject.h.

fgFormulaMap

std::map< TString, TFormula * > TLinearFitter::fgFormulaMap

staticprivate

! map of basis functions and formula

Definition at line 170 of file TLinearFitter.h.

fgObjectStat

Bool_t TObject::fgObjectStat = kTRUE

staticprivateinherited

if true keep track of objects in TObjectTable

Definition at line 50 of file TObject.h.

fH

Int_t TLinearFitter::fH

private

Definition at line 192 of file TLinearFitter.h.

fInputFunction

TFormula* TLinearFitter::fInputFunction

private

Definition at line 177 of file TLinearFitter.h.

fIsSet

Bool_t TLinearFitter::fIsSet

private

Definition at line 188 of file TLinearFitter.h.

fMethodCall

TMethodCall* TVirtualFitter::fMethodCall

protectedinherited

Pointer to MethodCall in case of interpreted function.

Definition at line 45 of file TVirtualFitter.h.

fName

TString TNamed::fName

protectedinherited

Definition at line 32 of file TNamed.h.

fNdim

Int_t TLinearFitter::fNdim

private

Definition at line 183 of file TLinearFitter.h.

fNfixed

Int_t TLinearFitter::fNfixed

private

Definition at line 184 of file TLinearFitter.h.

fNfunctions

Int_t TLinearFitter::fNfunctions

private

Definition at line 181 of file TLinearFitter.h.

fNpoints

Int_t TLinearFitter::fNpoints

private

Definition at line 180 of file TLinearFitter.h.

fObjectFit

TObject* TVirtualFitter::fObjectFit

protectedinherited

Pointer to object being fitted.

Definition at line 43 of file TVirtualFitter.h.

fOption

Foption_t TVirtualFitter::fOption

protectedinherited

Struct with the fit options.

Definition at line 32 of file TVirtualFitter.h.

fParams

TVectorD TLinearFitter::fParams

private

Definition at line 156 of file TLinearFitter.h.

fParCovar

TMatrixDSym TLinearFitter::fParCovar

private

Definition at line 157 of file TLinearFitter.h.

fParSign

TVectorD TLinearFitter::fParSign

private

Definition at line 159 of file TLinearFitter.h.

fPointSize

Int_t TVirtualFitter::fPointSize

protectedinherited

Number of words per point in the cache.

Definition at line 40 of file TVirtualFitter.h.

fRobust

Bool_t TLinearFitter::fRobust

private

Definition at line 193 of file TLinearFitter.h.

fSpecial

Int_t TLinearFitter::fSpecial

private

Definition at line 185 of file TLinearFitter.h.

fStoreData

Bool_t TLinearFitter::fStoreData

private

Definition at line 189 of file TLinearFitter.h.

fTitle

TString TNamed::fTitle

protectedinherited

Definition at line 33 of file TNamed.h.

fTValues

TVectorD TLinearFitter::fTValues

private

Definition at line 158 of file TLinearFitter.h.

fUniqueID

UInt_t TObject::fUniqueID

privateinherited

object unique identifier

Definition at line 46 of file TObject.h.

fUserFunc

TObject* TVirtualFitter::fUserFunc

protectedinherited

Pointer to user theoretical function (a TF1*).

Definition at line 44 of file TVirtualFitter.h.

fVal

Double_t TLinearFitter::fVal[1000]

private

! temporary

Definition at line 178 of file TLinearFitter.h.

fX

TMatrixD TLinearFitter::fX

private

Definition at line 175 of file TLinearFitter.h.

fXfirst

Int_t TVirtualFitter::fXfirst

protectedinherited

First bin on X axis.

Definition at line 33 of file TVirtualFitter.h.

fXlast

Int_t TVirtualFitter::fXlast

protectedinherited

Last bin on X axis.

Definition at line 34 of file TVirtualFitter.h.

fY

TVectorD TLinearFitter::fY

private

Definition at line 172 of file TLinearFitter.h.

fY2

Double_t TLinearFitter::fY2

private

Definition at line 173 of file TLinearFitter.h.

fY2Temp

Double_t TLinearFitter::fY2Temp

private

! temporary variable used for num.stability

Definition at line 174 of file TLinearFitter.h.

fYfirst

Int_t TVirtualFitter::fYfirst

protectedinherited

First bin on Y axis.

Definition at line 35 of file TVirtualFitter.h.

fYlast

Int_t TVirtualFitter::fYlast

protectedinherited

Last bin on Y axis.

Definition at line 36 of file TVirtualFitter.h.

fZfirst

Int_t TVirtualFitter::fZfirst

protectedinherited

First bin on Z axis.

Definition at line 37 of file TVirtualFitter.h.

fZlast

Int_t TVirtualFitter::fZlast

protectedinherited

Last bin on Z axis.

Definition at line 38 of file TVirtualFitter.h.

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The documentation for this class was generated from the following files:

• math/minuit/inc/TLinearFitter.h
• math/minuit/src/TLinearFitter.cxx