testNewMinimizer.cxx File Reference

#include "Math/Minimizer.h"
#include "Math/Factory.h"
#include "Math/Functor.h"
#include "TVirtualFitter.h"
#include "Math/IFunction.h"
#include "Math/Util.h"
#include <cmath>
#include <cassert>
#include <string>
#include <iostream>
#include "TStopwatch.h"
#include "TMatrixD.h"
#include "TVectorD.h"
#include "TRandom3.h"
#include "TMath.h"

Go to the source code of this file.

Classes
class	RosenBrockFunction
class	TrigoFletcherFunction
class	ChebyQuadFunction
Typedefs
typedef void(*)	FCN (Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag)
Functions
void	RosenBrock (Int_t &, Double_t *, Double_t &f, Double_t *par, Int_t)
double	WoodFunction (const double *par)
double	PowellFunction (const double *par)
double	SimpleQuadFunction (const double *par)
const double *	TrueMinimum (const ROOT::Math::IMultiGenFunction &func)
void	printMinimum (const std::vector< double > &x)
int	DoNewMinimization (const ROOT::Math::IMultiGenFunction &func, const double *x0, const double *s0, ROOT::Math::Minimizer *min, double &minval, double &edm, double *minx)
int	DoOldMinimization (FCN func, TVirtualFitter *min, double &minval, double &edm)
int	testNewMinimizer (const ROOT::Math::IMultiGenFunction &func, const double *x0, const double *s0, const std::string &minimizer, const std::string &algoType)
int	testOldMinimizer (FCN func, const std::string &fitter, int n=25)
int	testRosenBrock ()
int	testChebyQuad ()
int	testTrigoFletcher ()
int	testWood ()
int	testPowell ()
int	testQuadFunc ()
int	main ()
Variables
int	gNCall = 0
int	gNCall2 = 0
int	gNmin = 1000
int	gVerbose = 0
bool	useGradient = false
bool	minos = true
double	gAbsTolerance = 0.005

---

Typedef Documentation

typedef void(*) FCN(Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag)

Definition at line 37 of file testNewMinimizer.cxx.

---

Function Documentation

int DoNewMinimization	(	const ROOT::Math::IMultiGenFunction &	func,
		const double *	x0,
		const double *	s0,
		ROOT::Math::Minimizer *	min,
		double &	minval,
		double &	edm,
		double *	minx
	)

Definition at line 444 of file testNewMinimizer.cxx.

References copy(), DEBUG, ROOT::Math::eu, ROOT::Math::fabs(), func(), gAbsTolerance, gNCall, gVerbose, i, min, minos, ok, ROOT::Math::Util::ToString(), TrueMinimum(), useGradient, and xmin.

int DoOldMinimization	(	FCN	func,
		TVirtualFitter *	min,
		double &	minval,
		double &	edm
	)

Definition at line 514 of file testNewMinimizer.cxx.

References TMath::Abs(), gAbsTolerance, gVerbose, min, minos, and ok.

int main

(

void

)

Definition at line 860 of file testNewMinimizer.cxx.

References gNmin, gVerbose, testChebyQuad(), testPowell(), testQuadFunc(), testRosenBrock(), testTrigoFletcher(), and testWood().

double PowellFunction

(

const double *

par

)

Definition at line 393 of file testNewMinimizer.cxx.

References gNCall, w, and y.

Referenced by testPowell().

void printMinimum

(

const std::vector< double > &

x

)

Definition at line 430 of file testNewMinimizer.cxx.

References i, n, and pr().

void RosenBrock	(	Int_t &	,
		Double_t *	,
		Double_t &	f,
		Double_t *	par,
		Int_t
	)

Definition at line 43 of file testNewMinimizer.cxx.

References gNCall, x, and y.

double SimpleQuadFunction

(

const double *

par

)

Definition at line 410 of file testNewMinimizer.cxx.

References gNCall, and y.

Referenced by testQuadFunc().

int testChebyQuad

(

)

Definition at line 680 of file testNewMinimizer.cxx.

References func(), gNmin, max, n, testNewMinimizer(), x0, and x1.

int testNewMinimizer	(	const ROOT::Math::IMultiGenFunction &	func,
		const double *	x0,
		const double *	s0,
		const std::string &	minimizer,
		const std::string &	algoType
	)

Definition at line 558 of file testNewMinimizer.cxx.

References ROOT::Math::Factory::CreateMinimizer(), DoNewMinimization(), func(), gNCall, gNCall2, gNmin, i, min, pr(), printMinimum(), w, and xmin.

int testOldMinimizer	(	FCN	func,
		const std::string &	fitter,
		int	n = 25
	)

Definition at line 610 of file testNewMinimizer.cxx.

References DoOldMinimization(), TVirtualFitter::Fitter(), gNCall, gNmin, i, min, n, pr(), TVirtualFitter::SetDefaultFitter(), and w.

int testPowell

(

)

Definition at line 802 of file testNewMinimizer.cxx.

References gNmin, PowellFunction(), testNewMinimizer(), and x0.

Referenced by main().

int testQuadFunc

(

)

Definition at line 831 of file testNewMinimizer.cxx.

References gNmin, SimpleQuadFunction(), testNewMinimizer(), and x0.

Referenced by main().

int testRosenBrock

(

)

Definition at line 643 of file testNewMinimizer.cxx.

References gNmin, and testNewMinimizer().

int testTrigoFletcher

(

)

Definition at line 739 of file testNewMinimizer.cxx.

References gNmin, TrigoFletcherFunction::StartPoints(), and testNewMinimizer().

int testWood

(

)

Definition at line 772 of file testNewMinimizer.cxx.

References gNmin, testNewMinimizer(), WoodFunction(), and x0.

Referenced by main().

const double* TrueMinimum

(

const ROOT::Math::IMultiGenFunction &

func

)

Definition at line 419 of file testNewMinimizer.cxx.

References func(), RosenBrockFunction::TrueMinimum(), and TrigoFletcherFunction::TrueMinimum().

double WoodFunction

(

const double *

par

)

Definition at line 373 of file testNewMinimizer.cxx.

References gNCall, w, x1, and y.

Referenced by testWood().

---

Variable Documentation

double gAbsTolerance = 0.005

Definition at line 33 of file testNewMinimizer.cxx.

int gNCall = 0

Definition at line 25 of file testNewMinimizer.cxx.

int gNCall2 = 0

Definition at line 26 of file testNewMinimizer.cxx.

int gNmin = 1000

Definition at line 27 of file testNewMinimizer.cxx.

int gVerbose = 0

Definition at line 28 of file testNewMinimizer.cxx.

bool minos = true

Definition at line 31 of file testNewMinimizer.cxx.

bool useGradient = false

Definition at line 29 of file testNewMinimizer.cxx.

Referenced by DoNewMinimization().

---