library: libMinuit2 #include "TFitterMinuit.h" |
TFitterMinuit
class description - header file - source file - inheritance tree (.pdf)
protected:
virtual void CreateBinLikelihoodFCN()
virtual void CreateChi2ExtendedFCN()
virtual void CreateChi2FCN()
virtual void CreateUnbinLikelihoodFCN()
virtual ROOT::Minuit2::FunctionMinimum DoMinimization(int nfcn = 0, double edmval = 0.1)
virtual int ExamineMinimum(const ROOT::Minuit2::FunctionMinimum&)
virtual void Initialize()
virtual void SetMinimizer(ROOT::Minuit2::ModularFunctionMinimizer* m)
virtual ROOT::Minuit2::MnUserParameterState& State()
public:
TFitterMinuit()
TFitterMinuit(Int_t maxpar)
TFitterMinuit(const TFitterMinuit&)
virtual ~TFitterMinuit()
virtual Double_t Chisquare(Int_t npar, Double_t* params) const
static TClass* Class()
virtual void Clear(Option_t* option = "")
virtual void CreateMinimizer(TFitterMinuit::EMinimizerType = kMigrad)
virtual Int_t ExecuteCommand(const char* command, Double_t* args, Int_t nargs)
virtual void FixParameter(Int_t ipar)
virtual Double_t* GetCovarianceMatrix() const
virtual Double_t GetCovarianceMatrixElement(Int_t i, Int_t j) const
virtual Int_t GetErrors(Int_t ipar, Double_t& eplus, Double_t& eminus, Double_t& eparab, Double_t& globcc) const
virtual const ROOT::Minuit2::ModularFunctionMinimizer* GetMinimizer() const
virtual const ROOT::Minuit2::FCNBase* GetMinuitFCN() const
virtual Int_t GetNumberFreeParameters() const
virtual Int_t GetNumberTotalParameters() const
virtual Double_t GetParameter(Int_t ipar) const
virtual Int_t GetParameter(Int_t ipar, char* name, Double_t& value, Double_t& verr, Double_t& vlow, Double_t& vhigh) const
virtual Double_t GetParError(Int_t ipar) const
virtual const char* GetParName(Int_t ipar) const
virtual Int_t GetStats(Double_t& amin, Double_t& edm, Double_t& errdef, Int_t& nvpar, Int_t& nparx) const
int GetStrategy()
virtual Double_t GetSumLog(Int_t i)
virtual TClass* IsA() const
virtual Bool_t IsFixed(Int_t ipar) const
virtual int Minimize(int nfcn = 0, double edmval = 0.1)
double MinimumTolerance() const
int PrintLevel()
virtual void PrintResults(Int_t level, Double_t amin) const
virtual void ReleaseParameter(Int_t ipar)
virtual void SetFCN(void (*)(Int_t&, Double_t*, Double_t&f, Double_t*, Int_t) fcn)
virtual void SetFCN(void*)
virtual void SetFitMethod(const char* name)
void SetMinimumTolerance(double mintol)
virtual void SetMinuitFCN(ROOT::Minuit2::FCNBase* f)
virtual Int_t SetParameter(Int_t ipar, const char* parname, Double_t value, Double_t verr, Double_t vlow, Double_t vhigh)
void SetPrintLevel(int level)
void SetStrategy(int stra)
virtual void ShowMembers(TMemberInspector& insp, char* parent)
virtual const ROOT::Minuit2::MnUserParameterState& State() const
virtual void Streamer(TBuffer& b)
void StreamerNVirtual(TBuffer& b)
private:
double fErrorDef
double fEDMVal
bool fGradient
ROOT::Minuit2::MnUserParameterState fState
vector<ROOT::Minuit2::MinosError> fMinosErrors
ROOT::Minuit2::ModularFunctionMinimizer* fMinimizer
ROOT::Minuit2::FCNBase* fMinuitFCN
int fDebug
int fStrategy
double fMinTolerance
public:
static const TFitterMinuit::EMinimizerType kMigrad
static const TFitterMinuit::EMinimizerType kSimplex
static const TFitterMinuit::EMinimizerType kCombined
static const TFitterMinuit::EMinimizerType kScan
static const TFitterMinuit::EMinimizerType kFumili
TFitterMinuit()
Default constructor . Srategy and tolerance set to default values.
void Initialize()
initialize setting name and the global pointer
void CreateMinimizer(EMinimizerType type)
create the minimizer engine and register the plugin in ROOT
FunctionMinimum DoMinimization( int nfcn, double edmval)
perform minimization using Minuit2 function
use always strategy 1 (2 is not yet fully tested)
int ExamineMinimum(const FunctionMinimum & min)
/ study the function minimum
void SetFitMethod(const char *name)
set fit method (i.e. chi2 or likelihood)
according to the method the appropriate FCN function will be created
Int_t SetParameter(Int_t,const char *parname,Double_t value,Double_t verr,Double_t vlow, Double_t vhigh)
set (add) a new fit parameter passing initial value, step size (verr) and parametr limits
if vlow > vhigh the parameter is unbounded
if the stepsize (verr) == 0 the parameter is treated as fixed
void SetFCN(void (*fcn)(Int_t &, Double_t *, Double_t &f, Double_t *, Int_t))
override setFCN to use the Adapter to Minuit2 FCN interface
*-*-*-*-*-*-*To set the address of the minimization function*-*-*-*-*-*-*-*
*-* ===============================================
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
______________________________________________________________________________
void SetFCN(void *fcn)
*-*-*-*-*-*-*To set the address of the minimization function*-*-*-*-*-*-*-*
*-* ===============================================
this function is called by CINT instead of the function above
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
void SetMinuitFCN( FCNBase * f)
class takes the ownership of the passed pointer
so needs to delete previous one
void CreateChi2ExtendedFCN()
create an extended chi2 FCN object
used in the case of errors both on the coordinates and the value (case of a graph fit)
const ROOT::Minuit2::MnUserParameterState & State()
methods needed by derived classes
void SetMinimumTolerance(double mintol)
set minimum tolerance to avoid having clients (as TGraf::Fit) setting tolerances too small
ROOT::Minuit2::MnUserParameterState & State()
Last update: Tue Jul 11 11:49:26 2006
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