Hal::ErrorCalc Class Reference

Inheritance diagram for Hal::ErrorCalc:

Public Member Functions
	ErrorCalc (TString name="", Double_t val=0, Double_t err=0)
void	SetMeasuredVal (Double_t val)
void	SetStatError (Double_t val)
void	AddSysError (TString name, Double_t value, Double_t uncert=-1)
Double_t	GetStatError () const
Double_t	BarlowTest (Int_t prec=4) const
Double_t	TotalSys (Int_t prec=4) const

Static Public Member Functions
static Double_t	SumError (std::initializer_list< Double_t > errs)

Detailed Description

Definition at line 15 of file ErrorCalc.h.

Constructor & Destructor Documentation

ErrorCalc()

Hal::ErrorCalc::ErrorCalc	(	TString	name = "",
		Double_t	val = 0,
		Double_t	err = 0 )

Parameters

name
val

Definition at line 59 of file ErrorCalc.cxx.

Member Function Documentation

AddSysError()

void Hal::ErrorCalc::AddSysError	(	TString	name,
		Double_t	value,
		Double_t	uncert = -1 )

add systematic error source, if name is duplicated then error treated as a next measurement

Parameters

name
value
sysUncert	- statistical uncert of variation measurement, if -2 then assumed as abs(measurement - value) if any other negative value then assumed the same as stat error of measurement

Definition at line 73 of file ErrorCalc.cxx.

BarlowTest()

Double_t Hal::ErrorCalc::BarlowTest

(

Int_t

prec = 4

)

const

performs barlow test and print results

Parameters

prec	precision of printing

Returns

Definition at line 18 of file ErrorCalc.cxx.

GetStatError()

Double_t Hal::ErrorCalc::GetStatError

(

)

const

return statistical uncertainty for measurement

Parameters

name

Returns

Definition at line 16 of file ErrorCalc.cxx.

SetMeasuredVal()

void Hal::ErrorCalc::SetMeasuredVal ( Double_t val )

inline

set measured value of paramter

Parameters

val

Definition at line 32 of file ErrorCalc.h.

SetStatError()

void Hal::ErrorCalc::SetStatError ( Double_t val )

inline

Parameters

val	value of statistical error

Definition at line 37 of file ErrorCalc.h.

SumError()

Double_t Hal::ErrorCalc::SumError ( std::initializer_list< Double_t > errs )

static

return error by eq = sqrt(err[0]^2+err[1]^2+...)

Parameters

errs

Returns

Definition at line 112 of file ErrorCalc.cxx.

TotalSys()

Double_t Hal::ErrorCalc::TotalSys

(

Int_t

prec = 4

)

const

pefrom other test and print results in principle:

• the uncertainty of measurement with single method is assued as max(X-xi)
• then total uncertainty is sqrt(sum uncert_j)

  Parameters

  prec

  Returns

Definition at line 92 of file ErrorCalc.cxx.

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

• features/phys/ErrorCalc.h
• features/phys/ErrorCalc.cxx