minuit2FitBench2D.C File Reference

#include "TH1.h"
#include "TF1.h"
#include "TH2D.h"
#include "TF2.h"
#include "TCanvas.h"
#include "TStopwatch.h"
#include "TSystem.h"
#include "TRandom3.h"
#include "TVirtualFitter.h"
#include "TPaveLabel.h"
#include "TStyle.h"

Go to the source code of this file.

Functions
Double_t	gaus2D (Double_t *x, Double_t *par)
Double_t	fitFunction (Double_t *x, Double_t *par)
void	fillHisto (int n=10000)
void	DoFit (const char *fitter, TVirtualPad *pad, Int_t npass)
void	minuit2FitBench2D (int n=100000)
Variables
TF2 *	fitFcn
TH2D *	histo

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Function Documentation

void DoFit	(	const char *	fitter,
		TVirtualPad *	pad,
		Int_t	npass
	)

Definition at line 48 of file minuit2FitBench2D.C.

References TStopwatch::CpuTime(), TH1::Draw(), TH1::Fit(), fitFcn, Form(), histo, p, TStopwatch::RealTime(), TVirtualFitter::SetDefaultFitter(), TVirtualPad::SetGrid(), TFormula::SetParameters(), TStopwatch::Start(), TStopwatch::Stop(), timer, TVirtualPad::Update(), and TF1::Update().

void fillHisto

(

int

n = 10000

)

Definition at line 38 of file minuit2FitBench2D.C.

References TH1::Fill(), TRandom::Gaus(), gRandom, histo, i, n, x, and y.

Referenced by minuit2FitBench2D().

Double_t fitFunction	(	Double_t *	x,
		Double_t *	par
	)

Definition at line 34 of file minuit2FitBench2D.C.

References gaus2D().

Double_t gaus2D	(	Double_t *	x,
		Double_t *	par
	)

Definition at line 27 of file minuit2FitBench2D.C.

References exp().

void minuit2FitBench2D

(

int

n = 100000

)

Definition at line 67 of file minuit2FitBench2D.C.

References TH1::AddDirectory(), c1, TCanvas::cd(), TPad::Divide(), DoFit(), fillHisto(), fitFcn, fitFunction(), gPad, gStyle, histo, kFALSE, n, npass, TStyle::SetOptFit(), and TStyle::SetStatY().

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Variable Documentation

TF2* fitFcn

Definition at line 23 of file minuit2FitBench2D.C.

TH2D* histo

Definition at line 24 of file minuit2FitBench2D.C.

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