PndEmcPSAFPGALinFitter Class Reference

#include <PndEmcPSAFPGALinFitter.h>

Public Member Functions
	PndEmcPSAFPGALinFitter ()
	~PndEmcPSAFPGALinFitter ()
void	reset ()
void	putPoint (double ix, double iy)
void	fit ()
double	offset ()
double	slope ()
double	average ()
double	averageX ()

Private Attributes
double	x
double	xx
double	xy
double	y
double	a
double	k
unsigned int	Np

Detailed Description

Definition at line 4 of file PndEmcPSAFPGALinFitter.h.

Constructor & Destructor Documentation

PndEmcPSAFPGALinFitter::PndEmcPSAFPGALinFitter

(

)

Definition at line 3 of file PndEmcPSAFPGALinFitter.cxx.

References reset().

{
  reset();
}

PndEmcPSAFPGALinFitter::~PndEmcPSAFPGALinFitter

(

)

Definition at line 8 of file PndEmcPSAFPGALinFitter.cxx.

{
}

Member Function Documentation

double PndEmcPSAFPGALinFitter::average

(

)

Definition at line 47 of file PndEmcPSAFPGALinFitter.cxx.

References Np, and y.

{
  if (Np > 0)
    return y/Np;
  return 0.0;
}

double PndEmcPSAFPGALinFitter::averageX

(

)

Definition at line 53 of file PndEmcPSAFPGALinFitter.cxx.

References Np, and x.

{
  if (Np > 0)
    return x/Np;
  return 0.0;
}

void PndEmcPSAFPGALinFitter::fit

(

)

Definition at line 27 of file PndEmcPSAFPGALinFitter.cxx.

References a, k, Np, x, xx, xy, and y.

Referenced by PndEmcPSAFPGADigitalFilterAnalyser::put(), PndEmcPSAFPGAIntegratingAnalyser::put(), and PndEmcPSAFPGAPileupAnalyser::put().

{
  if (Np >= 2) {
    k = (Np*xy-y*x)/(Np*xx-x*x);
    a = (y-k*x)/Np;
  } else {
    k=0; a=0;
  }
}

double PndEmcPSAFPGALinFitter::offset

(

)

Definition at line 37 of file PndEmcPSAFPGALinFitter.cxx.

References a.

Referenced by PndEmcPSAFPGADigitalFilterAnalyser::put(), PndEmcPSAFPGAIntegratingAnalyser::put(), and PndEmcPSAFPGAPileupAnalyser::put().

{
  return a;
}

void PndEmcPSAFPGALinFitter::putPoint	(	double	ix,
		double	iy
	)

Definition at line 18 of file PndEmcPSAFPGALinFitter.cxx.

References Np, x, xx, xy, and y.

Referenced by PndEmcPSAFPGADigitalFilterAnalyser::put(), PndEmcPSAFPGAIntegratingAnalyser::put(), and PndEmcPSAFPGAPileupAnalyser::put().

{
  x += ix;
  xy += ix*iy;
  xx += ix*ix;
  y += iy;
  Np++;
}

void PndEmcPSAFPGALinFitter::reset

(

)

Definition at line 11 of file PndEmcPSAFPGALinFitter.cxx.

References Np, x, xx, xy, and y.

Referenced by PndEmcPSAFPGALinFitter(), PndEmcPSAFPGAIntegratingAnalyser::put(), PndEmcPSAFPGADigitalFilterAnalyser::put(), and PndEmcPSAFPGAPileupAnalyser::put().

{
  Np=0;
  x=0.0; xx=0.0;
  xy=0.0; y=0.0;
}

double PndEmcPSAFPGALinFitter::slope

(

)

Definition at line 42 of file PndEmcPSAFPGALinFitter.cxx.

References k.

Referenced by PndEmcPSAFPGADigitalFilterAnalyser::put(), PndEmcPSAFPGAIntegratingAnalyser::put(), and PndEmcPSAFPGAPileupAnalyser::put().

{
  return k;
}

Member Data Documentation

double PndEmcPSAFPGALinFitter::a

private

Definition at line 20 of file PndEmcPSAFPGALinFitter.h.

Referenced by fit(), and offset().

double PndEmcPSAFPGALinFitter::k

private

Definition at line 20 of file PndEmcPSAFPGALinFitter.h.

Referenced by fit(), and slope().

unsigned int PndEmcPSAFPGALinFitter::Np

private

Definition at line 21 of file PndEmcPSAFPGALinFitter.h.

Referenced by average(), averageX(), fit(), putPoint(), and reset().

double PndEmcPSAFPGALinFitter::x

private

Definition at line 16 of file PndEmcPSAFPGALinFitter.h.

Referenced by averageX(), fit(), putPoint(), and reset().

double PndEmcPSAFPGALinFitter::xx

private

Definition at line 17 of file PndEmcPSAFPGALinFitter.h.

Referenced by fit(), putPoint(), and reset().

double PndEmcPSAFPGALinFitter::xy

private

Definition at line 18 of file PndEmcPSAFPGALinFitter.h.

Referenced by fit(), putPoint(), and reset().

double PndEmcPSAFPGALinFitter::y

private

Definition at line 19 of file PndEmcPSAFPGALinFitter.h.

Referenced by average(), fit(), putPoint(), and reset().

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

• PndEmcPSAFPGALinFitter.h
• PndEmcPSAFPGALinFitter.cxx