Class to perform fitting for each xt function. More...

#include <XTFunction.h>

Collaboration diagram for XTFunction:

Public Member Functions
	XTFunction (TProfile *h1)
	Initialized with TProfile histogram.

	XTFunction (TProfile *h1, int mode)
	Initialized with TProfile histogram and mode.

	XTFunction (TH1F *h1, int mode)
	Initialized with TH1D histogram and mode.

	XTFunction (const XTFunction &x)
	Copy constructor.

XTFunction &	operator= (const XTFunction &x)
	Assignment operator.

void	setP6 (double p6)
	Set Parameter 6 for polynomia fit.

bool	isValid ()
	Is valid.

void	setMode (int mode)
	Set XT mode. More...

void	setBField (bool bfield)
	set to use BField

void	setXTParams (const double p[8])
	Set Parameters for fit.

void	setXTParams (double p0, double p1, double p2, double p3, double p4, double p5, double p6, double p7)
	Set Initial parameters for fitting.

void	setFitRange (double tmin, double tmax)
	Set Fit range.

void	setSmallestEntryRequired (int min)
	Set minimum number of entry required for fit.

void	setDebug (bool debug)
	Set Debug.

int	getFitStatus ()
	get fitted flag.

double	getProb ()
	Get the chi2 probability.

void	getFittedXTParams (double pa[8])
	get fit parameters.

TF1 *	getXTFunction ()
	Get XT function.

TProfile *	getFittedHisto ()
	Get histogram.

void	fitXT ()
	Do fitting.

void	FitPol5 ()
	Fit xt histogram incase 5th order polynomial is used.

void	FitChebyshev ()
	Fit xt histogram incase 5th order Chebeshev polynomial is used.

bool	validate ()
	Validate the xt has proper shape. More...

Private Attributes
TProfile *	m_h1
	Histogram of xt relation.

TF1 *	m_fitFunc
	Fit function.

int	m_mode = c_Chebyshev
	XT mode, 0 is for 5th order polynomial, 1 is Chebshev polynomial.

bool	m_debug = true
	Print debug durring fitting or not.

bool	m_draw = false
	Draw and store png plot of each histo or not.

bool	m_bField = true
	With magnetic field or not.

int	m_minRequiredEntry = 800
	Minimum entry required for each histo.

double	m_XTParam [8] = {}
	Parameter fo xt.

double	m_FittedXTParams [8] = {}
	Fitted parameters.

int	m_fitflag = 0
	Fit Flag =-1: low statitic =1: good =0: Fit failure =2: Error Outer =3: Error Inner part;.

double	m_Prob = 0
	Chi2 prob of fitting.

double	m_tmin = 20
	lower boundary of fit range

double	m_tmax = m_XTParam[6] + 50
	upper boundary of fit range

Detailed Description

Class to perform fitting for each xt function.

Definition at line 69 of file XTFunction.h.

Member Function Documentation

void setMode ( int mode )

inline

Set XT mode.

1 is 5th order Chebshev polynomial. 0 is 5th order polynomial.

Definition at line 189 of file XTFunction.h.

       {
         m_mode = mode;
       }

bool validate ( )

Validate the xt has proper shape.

Suppose to be bad xt if |xt(0)| > 0.2.

Definition at line 419 of file XTFunction.h.

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