ROOT 6.16/01 Reference Guide |
Public Member Functions | |
TFumili (Int_t maxpar=25) | |
virtual | ~TFumili () |
TFumili destructor. More... | |
void | BuildArrays () |
Allocates memory for internal arrays. More... | |
virtual Double_t | Chisquare (Int_t npar, Double_t *params) const |
return a chisquare equivalent More... | |
virtual void | Clear (Option_t *opt="") |
Resets all parameter names, values and errors to zero. More... | |
void | DeleteArrays () |
Deallocates memory. More... | |
void | Derivatives (Double_t *, Double_t *) |
Calculates partial derivatives of theoretical function. More... | |
Int_t | Eval (Int_t &npar, Double_t *grad, Double_t &fval, Double_t *par, Int_t flag) |
Evaluate the minimisation function Input parameters: npar: number of currently variable parameters par: array of (constant and variable) parameters flag: Indicates what is to be calculated grad: array of gradients Output parameters: fval: The calculated function value. More... | |
Double_t | EvalTFN (Double_t *, Double_t *) |
Evaluate theoretical function df: array of partial derivatives X: vector of theoretical function argument. More... | |
virtual Int_t | ExecuteCommand (const char *command, Double_t *args, Int_t nargs) |
Execute MINUIT commands. More... | |
Int_t | ExecuteSetCommand (Int_t) |
Called from TFumili::ExecuteCommand in case of "SET xxx" and "SHOW xxx". More... | |
virtual void | FitChisquare (Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag) |
Minimization function for H1s using a Chisquare method. More... | |
virtual void | FitChisquareI (Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag) |
Minimization function for H1s using a Chisquare method. More... | |
virtual void | FitLikelihood (Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag) |
Minimization function for H1s using a Likelihood method. More... | |
virtual void | FitLikelihoodI (Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag) |
Minimization function for H1s using a Likelihood method. More... | |
virtual void | FixParameter (Int_t ipar) |
Fixes parameter number ipar. More... | |
virtual Double_t * | GetCovarianceMatrix () const |
return a pointer to the covariance matrix More... | |
virtual Double_t | GetCovarianceMatrixElement (Int_t i, Int_t j) const |
return element i,j from the covariance matrix More... | |
virtual Int_t | GetErrors (Int_t ipar, Double_t &eplus, Double_t &eminus, Double_t &eparab, Double_t &globcc) const |
Return errors after MINOs not implemented. More... | |
virtual Int_t | GetNumberFreeParameters () const |
return the number of free parameters More... | |
virtual Int_t | GetNumberTotalParameters () const |
return the total number of parameters (free + fixed) More... | |
virtual Double_t | GetParameter (Int_t ipar) const |
return current value of parameter ipar More... | |
virtual Int_t | GetParameter (Int_t ipar, char *name, Double_t &value, Double_t &verr, Double_t &vlow, Double_t &vhigh) const |
Get various ipar parameter attributs: More... | |
virtual Double_t | GetParError (Int_t ipar) const |
return error of parameter ipar More... | |
virtual const char * | GetParName (Int_t ipar) const |
return name of parameter ipar More... | |
Double_t * | GetPL0 () const |
virtual Int_t | GetStats (Double_t &amin, Double_t &edm, Double_t &errdef, Int_t &nvpar, Int_t &nparx) const |
return global fit parameters amin : chisquare edm : estimated distance to minimum errdef nvpar : number of variable parameters nparx : total number of parameters More... | |
virtual Double_t | GetSumLog (Int_t) |
return Sum(log(i) i=0,n used by log likelihood fits More... | |
Double_t * | GetZ () const |
void | InvertZ (Int_t) |
Inverts packed diagonal matrix Z by square-root method. More... | |
virtual Bool_t | IsFixed (Int_t ipar) const |
Return kTRUE if parameter ipar is fixed, kFALSE othersise) More... | |
Int_t | Minimize () |
virtual void | PrintResults (Int_t k, Double_t p) const |
Prints fit results. More... | |
virtual void | ReleaseParameter (Int_t ipar) |
Releases parameter number ipar. More... | |
void | SetData (Double_t *, Int_t, Int_t) |
Sets pointer to data array provided by user. More... | |
virtual void | SetFitMethod (const char *name) |
ret fit method (chisquare or loglikelihood) More... | |
virtual Int_t | SetParameter (Int_t ipar, const char *parname, Double_t value, Double_t verr, Double_t vlow, Double_t vhigh) |
Sets for prameter number ipar initial parameter value, name parname, initial error verr and limits vlow and vhigh If vlow = vhigh but not equil to zero, parameter will be fixed. More... | |
void | SetParNumber (Int_t ParNum) |
Int_t | SGZ () |
Evaluates objective function ( chi-square ), gradients and Z-matrix using data provided by user via TFumili::SetData. More... | |
Public Member Functions inherited from TVirtualFitter | |
TVirtualFitter () | |
Default constructor. More... | |
virtual | ~TVirtualFitter () |
Cleanup virtual fitter. More... | |
virtual Double_t | Chisquare (Int_t npar, Double_t *params) const =0 |
virtual void | Clear (Option_t *option="")=0 |
Set name and title to empty strings (""). More... | |
virtual Int_t | ExecuteCommand (const char *command, Double_t *args, Int_t nargs)=0 |
virtual void | FixParameter (Int_t ipar)=0 |
virtual void | GetConfidenceIntervals (Int_t n, Int_t ndim, const Double_t *x, Double_t *ci, Double_t cl=0.95) |
return confidence intervals in array x of dimension ndim implemented in TFitter and TLinearFitter More... | |
virtual void | GetConfidenceIntervals (TObject *obj, Double_t cl=0.95) |
return confidence intervals in TObject obj implemented in TFitter and TLinearFitter More... | |
virtual Double_t * | GetCovarianceMatrix () const =0 |
virtual Double_t | GetCovarianceMatrixElement (Int_t i, Int_t j) const =0 |
virtual Int_t | GetErrors (Int_t ipar, Double_t &eplus, Double_t &eminus, Double_t &eparab, Double_t &globcc) const =0 |
virtual FCNFunc_t | GetFCN () |
virtual Foption_t | GetFitOption () const |
TMethodCall * | GetMethodCall () const |
virtual Int_t | GetNumberFreeParameters () const =0 |
virtual Int_t | GetNumberTotalParameters () const =0 |
virtual TObject * | GetObjectFit () const |
virtual Double_t | GetParameter (Int_t ipar) const =0 |
virtual Int_t | GetParameter (Int_t ipar, char *name, Double_t &value, Double_t &verr, Double_t &vlow, Double_t &vhigh) const =0 |
virtual Double_t | GetParError (Int_t ipar) const =0 |
virtual const char * | GetParName (Int_t ipar) const =0 |
virtual Int_t | GetStats (Double_t &amin, Double_t &edm, Double_t &errdef, Int_t &nvpar, Int_t &nparx) const =0 |
virtual Double_t | GetSumLog (Int_t i)=0 |
virtual TObject * | GetUserFunc () const |
virtual Int_t | GetXfirst () const |
virtual Int_t | GetXlast () const |
virtual Int_t | GetYfirst () const |
virtual Int_t | GetYlast () const |
virtual Int_t | GetZfirst () const |
virtual Int_t | GetZlast () const |
virtual Bool_t | IsFixed (Int_t ipar) const =0 |
virtual void | PrintResults (Int_t level, Double_t amin) const =0 |
virtual void | ReleaseParameter (Int_t ipar)=0 |
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. More... | |
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 CINT) More... | |
virtual void | SetFitMethod (const char *name)=0 |
virtual void | SetFitOption (Foption_t option) |
virtual void | SetObjectFit (TObject *obj) |
virtual Int_t | SetParameter (Int_t ipar, const char *parname, Double_t value, Double_t verr, Double_t vlow, Double_t vhigh)=0 |
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) |
Public Member Functions inherited from TNamed | |
TNamed () | |
TNamed (const char *name, const char *title) | |
TNamed (const TNamed &named) | |
TNamed copy ctor. More... | |
TNamed (const TString &name, const TString &title) | |
virtual | ~TNamed () |
TNamed destructor. More... | |
virtual void | Clear (Option_t *option="") |
Set name and title to empty strings (""). More... | |
virtual TObject * | Clone (const char *newname="") const |
Make a clone of an object using the Streamer facility. More... | |
virtual Int_t | Compare (const TObject *obj) const |
Compare two TNamed objects. More... | |
virtual void | Copy (TObject &named) const |
Copy this to obj. More... | |
virtual void | FillBuffer (char *&buffer) |
Encode TNamed into output buffer. More... | |
virtual const char * | GetName () const |
Returns name of object. More... | |
virtual const char * | GetTitle () const |
Returns title of object. More... | |
virtual ULong_t | Hash () const |
Return hash value for this object. More... | |
virtual Bool_t | IsSortable () const |
virtual void | ls (Option_t *option="") const |
List TNamed name and title. More... | |
TNamed & | operator= (const TNamed &rhs) |
TNamed assignment operator. More... | |
virtual void | Print (Option_t *option="") const |
Print TNamed name and title. More... | |
virtual void | SetName (const char *name) |
Set the name of the TNamed. More... | |
virtual void | SetNameTitle (const char *name, const char *title) |
Set all the TNamed parameters (name and title). More... | |
virtual void | SetTitle (const char *title="") |
Set the title of the TNamed. More... | |
virtual Int_t | Sizeof () const |
Return size of the TNamed part of the TObject. More... | |
Public Member Functions inherited from TObject | |
TObject () | |
TObject constructor. More... | |
TObject (const TObject &object) | |
TObject copy ctor. More... | |
virtual | ~TObject () |
TObject destructor. More... | |
void | AbstractMethod (const char *method) const |
Use this method to implement an "abstract" method that you don't want to leave purely abstract. More... | |
virtual void | AppendPad (Option_t *option="") |
Append graphics object to current pad. More... | |
virtual void | Browse (TBrowser *b) |
Browse object. May be overridden for another default action. More... | |
ULong_t | CheckedHash () |
Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More... | |
virtual const char * | ClassName () const |
Returns name of class to which the object belongs. More... | |
virtual void | Clear (Option_t *="") |
virtual TObject * | Clone (const char *newname="") const |
Make a clone of an object using the Streamer facility. More... | |
virtual Int_t | Compare (const TObject *obj) const |
Compare abstract method. More... | |
virtual void | Copy (TObject &object) const |
Copy this to obj. More... | |
virtual void | Delete (Option_t *option="") |
Delete this object. More... | |
virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
Computes distance from point (px,py) to the object. More... | |
virtual void | Draw (Option_t *option="") |
Default Draw method for all objects. More... | |
virtual void | DrawClass () const |
Draw class inheritance tree of the class to which this object belongs. More... | |
virtual TObject * | DrawClone (Option_t *option="") const |
Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad) . More... | |
virtual void | Dump () const |
Dump contents of object on stdout. More... | |
virtual void | Error (const char *method, const char *msgfmt,...) const |
Issue error message. More... | |
virtual void | Execute (const char *method, const char *params, Int_t *error=0) |
Execute method on this object with the given parameter string, e.g. More... | |
virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=0) |
Execute method on this object with parameters stored in the TObjArray. More... | |
virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
Execute action corresponding to an event at (px,py). More... | |
virtual void | Fatal (const char *method, const char *msgfmt,...) const |
Issue fatal error message. More... | |
virtual TObject * | FindObject (const char *name) const |
Must be redefined in derived classes. More... | |
virtual TObject * | FindObject (const TObject *obj) const |
Must be redefined in derived classes. More... | |
virtual Option_t * | GetDrawOption () const |
Get option used by the graphics system to draw this object. More... | |
virtual const char * | GetIconName () const |
Returns mime type name of object. More... | |
virtual const char * | GetName () const |
Returns name of object. More... | |
virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
Returns string containing info about the object at position (px,py). More... | |
virtual Option_t * | GetOption () const |
virtual const char * | GetTitle () const |
Returns title of object. More... | |
virtual UInt_t | GetUniqueID () const |
Return the unique object id. More... | |
virtual Bool_t | HandleTimer (TTimer *timer) |
Execute action in response of a timer timing out. More... | |
virtual ULong_t | Hash () const |
Return hash value for this object. More... | |
Bool_t | HasInconsistentHash () const |
Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More... | |
virtual void | Info (const char *method, const char *msgfmt,...) const |
Issue info message. More... | |
virtual Bool_t | InheritsFrom (const char *classname) const |
Returns kTRUE if object inherits from class "classname". More... | |
virtual Bool_t | InheritsFrom (const TClass *cl) const |
Returns kTRUE if object inherits from TClass cl. More... | |
virtual void | Inspect () const |
Dump contents of this object in a graphics canvas. More... | |
void | InvertBit (UInt_t f) |
virtual Bool_t | IsEqual (const TObject *obj) const |
Default equal comparison (objects are equal if they have the same address in memory). More... | |
virtual Bool_t | IsFolder () const |
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More... | |
R__ALWAYS_INLINE Bool_t | IsOnHeap () const |
virtual Bool_t | IsSortable () const |
R__ALWAYS_INLINE Bool_t | IsZombie () const |
virtual void | ls (Option_t *option="") const |
The ls function lists the contents of a class on stdout. More... | |
void | MayNotUse (const char *method) const |
Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More... | |
virtual Bool_t | Notify () |
This method must be overridden to handle object notification. More... | |
void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
Use this method to declare a method obsolete. More... | |
void | operator delete (void *ptr) |
Operator delete. More... | |
void | operator delete[] (void *ptr) |
Operator delete []. More... | |
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) |
TObject & | operator= (const TObject &rhs) |
TObject assignment operator. More... | |
virtual void | Paint (Option_t *option="") |
This method must be overridden if a class wants to paint itself. More... | |
virtual void | Pop () |
Pop on object drawn in a pad to the top of the display list. More... | |
virtual void | Print (Option_t *option="") const |
This method must be overridden when a class wants to print itself. More... | |
virtual Int_t | Read (const char *name) |
Read contents of object with specified name from the current directory. More... | |
virtual void | RecursiveRemove (TObject *obj) |
Recursively remove this object from a list. More... | |
void | ResetBit (UInt_t f) |
virtual void | SaveAs (const char *filename="", Option_t *option="") const |
Save this object in the file specified by filename. More... | |
virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
Save a primitive as a C++ statement(s) on output stream "out". More... | |
void | SetBit (UInt_t f) |
void | SetBit (UInt_t f, Bool_t set) |
Set or unset the user status bits as specified in f. More... | |
virtual void | SetDrawOption (Option_t *option="") |
Set drawing option for object. More... | |
virtual void | SetUniqueID (UInt_t uid) |
Set the unique object id. More... | |
virtual void | SysError (const char *method, const char *msgfmt,...) const |
Issue system error message. More... | |
R__ALWAYS_INLINE Bool_t | TestBit (UInt_t f) const |
Int_t | TestBits (UInt_t f) const |
virtual void | UseCurrentStyle () |
Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More... | |
virtual void | Warning (const char *method, const char *msgfmt,...) const |
Issue warning message. More... | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) |
Write this object to the current directory. More... | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const |
Write this object to the current directory. More... | |
Private Attributes | |
Double_t * | fA |
Double_t | fAKAPPA |
Double_t * | fAMN |
Double_t * | fAMX |
TString * | fANames |
Double_t * | fCmPar |
TString | fCword |
Double_t * | fDA |
Bool_t | fDEBUG |
Double_t * | fDF |
Int_t | fENDFLG |
Double_t | fEPS |
Double_t * | fEXDA |
Double_t * | fGr |
Bool_t | fGRAD |
Double_t | fGT |
Int_t | fINDFLG [5] |
Int_t | fLastFixed |
Bool_t | fLogLike |
Int_t | fMaxParam |
Int_t | fNED1 |
Int_t | fNED12 |
Int_t | fNED2 |
Int_t | fNfcn |
Int_t | fNlimMul |
Int_t | fNlog |
Int_t | fNmaxIter |
Int_t | fNpar |
Int_t | fNstepDec |
Bool_t | fNumericDerivatives |
Double_t * | fParamError |
Double_t * | fPL |
Double_t * | fPL0 |
Double_t * | fR |
Double_t | fRP |
Double_t | fS |
Double_t * | fSumLog |
Bool_t | fWARN |
Double_t * | fZ |
Double_t * | fZ0 |
Additional Inherited Members | |
Public Types inherited from TVirtualFitter | |
typedef void(* | FCNFunc_t) (Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag) |
Public Types inherited from TObject | |
enum | { kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff } |
enum | { kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) } |
enum | EDeprecatedStatusBits { kObjInCanvas = BIT(3) } |
enum | EStatusBits { kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) , kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) } |
Static Public Member Functions inherited from TVirtualFitter | |
static TVirtualFitter * | Fitter (TObject *obj, Int_t maxpar=25) |
Static function returning a pointer to the current fitter. More... | |
static const char * | GetDefaultFitter () |
static: return the name of the default fitter More... | |
static Double_t | GetErrorDef () |
static: Return the Error Definition More... | |
static TVirtualFitter * | GetFitter () |
static: return the current Fitter More... | |
static Int_t | GetMaxIterations () |
static: Return the maximum number of iterations actually max number of function calls More... | |
static Double_t | GetPrecision () |
static: Return the fit relative precision More... | |
static void | SetDefaultFitter (const char *name="") |
static: set name of default fitter More... | |
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) More... | |
static void | SetFitter (TVirtualFitter *fitter, Int_t maxpar=25) |
Static function to set an alternative fitter. More... | |
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 ) More... | |
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 ) More... | |
Static Public Member Functions inherited from TObject | |
static Long_t | GetDtorOnly () |
Return destructor only flag. More... | |
static Bool_t | GetObjectStat () |
Get status of object stat flag. More... | |
static void | SetDtorOnly (void *obj) |
Set destructor only flag. More... | |
static void | SetObjectStat (Bool_t stat) |
Turn on/off tracking of objects in the TObjectTable. More... | |
Protected Member Functions inherited from TVirtualFitter | |
TVirtualFitter (const TVirtualFitter &tvf) | |
copy constructor More... | |
TVirtualFitter & | operator= (const TVirtualFitter &tvf) |
assignment operator More... | |
Protected Member Functions inherited from TObject | |
virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
Interface to ErrorHandler (protected). More... | |
void | MakeZombie () |
Protected Attributes inherited from TVirtualFitter | |
Double_t * | fCache |
Int_t | fCacheSize |
void(* | fFCN )(Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag) |
TMethodCall * | fMethodCall |
Int_t | fNpoints |
TObject * | fObjectFit |
Foption_t | fOption |
Int_t | fPointSize |
TObject * | fUserFunc |
Int_t | fXfirst |
Int_t | fXlast |
Int_t | fYfirst |
Int_t | fYlast |
Int_t | fZfirst |
Int_t | fZlast |
Protected Attributes inherited from TNamed | |
TString | fName |
TString | fTitle |
#include <TFumili.h>
TFumili::TFumili | ( | Int_t | maxpar = 25 | ) |
Definition at line 129 of file TFumili.cxx.
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virtual |
TFumili destructor.
Definition at line 212 of file TFumili.cxx.
void TFumili::BuildArrays | ( | ) |
Allocates memory for internal arrays.
Called by TFumili::TFumili
Definition at line 174 of file TFumili.cxx.
return a chisquare equivalent
Implements TVirtualFitter.
Definition at line 222 of file TFumili.cxx.
Resets all parameter names, values and errors to zero.
Argument opt is ignored
NB: this procedure doesn't reset parameter limits
Implements TVirtualFitter.
Definition at line 239 of file TFumili.cxx.
void TFumili::DeleteArrays | ( | ) |
Deallocates memory.
Called from destructor TFumili::~TFumili
Definition at line 261 of file TFumili.cxx.
Calculates partial derivatives of theoretical function.
Input: fX - vector of data point Output: DF - array of derivatives
ARITHM.F Converted from CERNLIB
Definition at line 293 of file TFumili.cxx.
Evaluate the minimisation function Input parameters: npar: number of currently variable parameters par: array of (constant and variable) parameters flag: Indicates what is to be calculated grad: array of gradients Output parameters: fval: The calculated function value.
grad: The vector of first derivatives.
The meaning of the parameters par is of course defined by the user, who uses the values of those parameters to calculate their function value. The starting values must be specified by the user. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Inside FCN user has to define Z-matrix by means TFumili::GetZ and TFumili::Derivatives, set theoretical function by means of TFumili::SetUserFunc, but first - pass number of parameters by TFumili::SetParNumber !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Later values are determined by Fumili as it searches for the minimum or performs whatever analysis is requested by the user.
The default function calls the function specified in SetFCN
Definition at line 352 of file TFumili.cxx.
Evaluate theoretical function df: array of partial derivatives X: vector of theoretical function argument.
Definition at line 364 of file TFumili.cxx.
Execute MINUIT commands.
MINImize, SIMplex, MIGrad and FUMili all will call TFumili::Minimize method.
For full command list see MINUIT. Reference Manual. CERN Program Library Long Writeup D506.
Improvement and errors calculation are not yet implemented as well as Monte-Carlo seeking and minimization. Contour commands are also unsupported.
command : command string args : array of arguments nargs : number of arguments
Implements TVirtualFitter.
Definition at line 394 of file TFumili.cxx.
Called from TFumili::ExecuteCommand in case of "SET xxx" and "SHOW xxx".
Definition at line 565 of file TFumili.cxx.
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virtual |
Minimization function for H1s using a Chisquare method.
Default method (function evaluated at center of bin) for each point the cache contains the following info -1D : bc,e,xc (bin content, error, x of center of bin) -2D : bc,e,xc,yc -3D : bc,e,xc,yc,zc
Definition at line 1770 of file TFumili.cxx.
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virtual |
Minimization function for H1s using a Chisquare method.
The "I"ntegral method is used for each point the cache contains the following info -1D : bc,e,xc,xw (bin content, error, x of center of bin, x bin width of bin) -2D : bc,e,xc,xw,yc,yw -3D : bc,e,xc,xw,yc,yw,zc,zw
Definition at line 1842 of file TFumili.cxx.
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Minimization function for H1s using a Likelihood method.
Basically, it forms the likelihood by determining the Poisson probability that given a number of entries in a particular bin, the fit would predict it's value. This is then done for each bin, and the sum of the logs is taken as the likelihood. Default method (function evaluated at center of bin) for each point the cache contains the following info -1D : bc,e,xc (bin content, error, x of center of bin) -2D : bc,e,xc,yc -3D : bc,e,xc,yc,zc
Definition at line 1917 of file TFumili.cxx.
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Minimization function for H1s using a Likelihood method.
Basically, it forms the likelihood by determining the Poisson probability that given a number of entries in a particular bin, the fit would predict it's value. This is then done for each bin, and the sum of the logs is taken as the likelihood. The "I"ntegral method is used for each point the cache contains the following info -1D : bc,e,xc,xw (bin content, error, x of center of bin, x bin width of bin) -2D : bc,e,xc,xw,yc,yw -3D : bc,e,xc,xw,yc,yw,zc,zw
Definition at line 2005 of file TFumili.cxx.
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return a pointer to the covariance matrix
Implements TVirtualFitter.
Definition at line 791 of file TFumili.cxx.
return element i,j from the covariance matrix
Implements TVirtualFitter.
Definition at line 800 of file TFumili.cxx.
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Return errors after MINOs not implemented.
Implements TVirtualFitter.
Definition at line 890 of file TFumili.cxx.
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return the number of free parameters
Implements TVirtualFitter.
Definition at line 822 of file TFumili.cxx.
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return the total number of parameters (free + fixed)
Implements TVirtualFitter.
Definition at line 814 of file TFumili.cxx.
return current value of parameter ipar
Implements TVirtualFitter.
Definition at line 843 of file TFumili.cxx.
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Get various ipar parameter attributs:
cname: parameter name value: parameter value verr: parameter error vlow: lower limit vhigh: upper limit WARNING! parname must be suitably dimensionned in the calling function.
Implements TVirtualFitter.
Definition at line 860 of file TFumili.cxx.
return error of parameter ipar
Implements TVirtualFitter.
Definition at line 834 of file TFumili.cxx.
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return name of parameter ipar
Implements TVirtualFitter.
Definition at line 880 of file TFumili.cxx.
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return global fit parameters amin : chisquare edm : estimated distance to minimum errdef nvpar : number of variable parameters nparx : total number of parameters
Implements TVirtualFitter.
Definition at line 912 of file TFumili.cxx.
return Sum(log(i) i=0,n used by log likelihood fits
Implements TVirtualFitter.
Definition at line 931 of file TFumili.cxx.
Inverts packed diagonal matrix Z by square-root method.
Matrix elements corresponding to fix parameters are removed.
n: number of variable parameters
Definition at line 958 of file TFumili.cxx.
Return kTRUE if parameter ipar is fixed, kFALSE othersise)
Implements TVirtualFitter.
Definition at line 1076 of file TFumili.cxx.
Int_t TFumili::Minimize | ( | ) |
Definition at line 1089 of file TFumili.cxx.
Prints fit results.
ikode is the type of printing parameters p is function value
ikode = 1 - print values, errors and limits ikode = 2 - print values, errors and steps ikode = 3 - print values, errors, steps and derivatives ikode = 4 - print only values and errors
Implements TVirtualFitter.
Definition at line 1509 of file TFumili.cxx.
Releases parameter number ipar.
Implements TVirtualFitter.
Definition at line 1613 of file TFumili.cxx.
Sets pointer to data array provided by user.
Necessary if SetFCN is not called.
numpoints: number of experimental points vecsize: size of data point vector + 2 (for N-dimensional fit vecsize=N+2) exdata: data array with following format
exdata[0] = ExpValue_0 - experimental data value number 0 exdata[1] = ExpSigma_0 - error of value number 0 exdata[2] = X_0[0] exdata[3] = X_0[1] ......... exdata[vecsize-1] = X_0[vecsize-3] exdata[vecsize] = ExpValue_1 exdata[vecsize+1] = ExpSigma_1 exdata[vecsize+2] = X_1[0] ......... exdata[vecsize*(numpoints-1)] = ExpValue_(numpoints-1) ......... exdata[vecsize*numpoints-1] = X_(numpoints-1)[vecsize-3]
Definition at line 1645 of file TFumili.cxx.
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ret fit method (chisquare or loglikelihood)
Implements TVirtualFitter.
Definition at line 1657 of file TFumili.cxx.
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Sets for prameter number ipar initial parameter value, name parname, initial error verr and limits vlow and vhigh If vlow = vhigh but not equil to zero, parameter will be fixed.
If vlow = vhigh = 0, parameter is released and its limits are discarded
Implements TVirtualFitter.
Definition at line 1672 of file TFumili.cxx.
Int_t TFumili::SGZ | ( | ) |
Evaluates objective function ( chi-square ), gradients and Z-matrix using data provided by user via TFumili::SetData.
Definition at line 1702 of file TFumili.cxx.