LaserCalibratorFit Class Reference

A class do laser calibration fit provide different fitting method (under development) More...

#include <LaserCalibratorFit.h>

Collaboration diagram for LaserCalibratorFit:

Public Member Functions
	LaserCalibratorFit (unsigned moduleID)
	Constructor. More...
	~LaserCalibratorFit ()
	Destructor.
void	setHist (const std::vector< TH1F * > &hist)
	set time hist of all channels in one moduleID More...
void	setFitMethod (const std::string &method)
	set time fit function More...
void	setFitRange (double xmin=-200, double xmax=200)
	set x range in the fit More...
int	fitChannel (unsigned channel)
	fit for a specific channel More...
void	writeFile (const std::string &outfile)
	write fit result to a root file More...
int	getModuleID () const
	get the module ID in the fit
double	getFitChisq (unsigned channel)
	get chi^2 in the fit More...
std::string	getFitMethod () const
	get the fit method used in recent module
std::vector< double >	getMaxPos ()
	get the center positon of hist max bin
double	getFitT ()
	get mean positon after fit
double	getFitTErr ()
	returns the error mean positon after fit

Private Member Functions
TF1 *	makeGFit (unsigned channel)
	Fit process using single gaussian function. More...
TF1 *	makeCBFit (unsigned channel)
	Fit process using single Crystal Ball fuction. More...
TF1 *	makeCB2Fit (unsigned channel, bool minOut)
	Fit process using double Crystal Ball fuction. More...

Private Attributes
unsigned	m_moduleID = 0
	one moduleID/slot
std::vector< double >	m_maxpos
	center positon of hist max bin
std::vector< double >	m_maxpos_error
	error on the center positon of hist max bin
double	m_xmin = 0
	fitting low-edge
double	m_xmax = 0
	fitting upper-edge
double	m_fitT = 0
	mean position after fit
double	m_fitTErr = 0.
	error on the mean position estimated by the fit
std::vector< TH1F * >	m_hist
	time hist of 512 channels
std::vector< TF1 * >	m_func
	fitting function
std::string	m_fitMethod
	fitting method

Detailed Description

A class do laser calibration fit provide different fitting method (under development)

Definition at line 44 of file LaserCalibratorFit.h.

Constructor & Destructor Documentation

LaserCalibratorFit()

LaserCalibratorFit ( unsigned  moduleID )

explicit

Constructor.

Parameters

moduleID

module ID

Definition at line 54 of file LaserCalibratorFit.cc.

                                                           :
      m_moduleID(moduleID)
    {
    }

Member Function Documentation

fitChannel()

int fitChannel

(

unsigned

channel

)

fit for a specific channel

Parameters

channel

a specific channel (0 - 511)

Definition at line 92 of file LaserCalibratorFit.cc.

getFitChisq()

double getFitChisq

(

unsigned

channel

)

get chi^2 in the fit

Parameters

channel

chi^2 for a channel

Definition at line 83 of file LaserCalibratorFit.cc.

makeCB2Fit()

TF1 * makeCB2Fit ( unsigned  channel, bool  minOut  )

private

Fit process using double Crystal Ball fuction.

Parameters

channel	refers to a typical time separation of two main peaks
minOut	minimum printing need more studies

Definition at line 291 of file LaserCalibratorFit.cc.

makeCBFit()

TF1 * makeCBFit ( unsigned  channel )

private

Fit process using single Crystal Ball fuction.

Parameters

channel

channel number

Definition at line 253 of file LaserCalibratorFit.cc.

makeGFit()

TF1 * makeGFit ( unsigned  channel )

private

Fit process using single gaussian function.

Parameters

channel

channel number

Definition at line 235 of file LaserCalibratorFit.cc.

setFitMethod()

void setFitMethod ( const std::string &  method )

inline

set time fit function

Parameters

method

gauss: single gaussian; cb: single Crystal Ball; cb2: double Crystal Ball

Definition at line 67 of file LaserCalibratorFit.h.

{m_fitMethod = method;}

setFitRange()

void setFitRange ( double  xmin = -200, double  xmax = 200  )

inline

set x range in the fit

Parameters

xmin	lower x
xmax	upper x

Definition at line 74 of file LaserCalibratorFit.h.

setHist()

void setHist

(

const std::vector< TH1F * > &

hist

)

set time hist of all channels in one moduleID

Parameters

hist	time hist vector

Definition at line 73 of file LaserCalibratorFit.cc.

writeFile()

void writeFile

(

const std::string &

outfile

)

write fit result to a root file

Parameters

outfile

output file name

Definition at line 125 of file LaserCalibratorFit.cc.

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

• top/modules/TOPLaserCalibrator/include/LaserCalibratorFit.h
• top/modules/TOPLaserCalibrator/src/LaserCalibratorFit.cc