PerfMon::LinFitSglPass Class Reference

#include <LinFitSglPass.h>

Collaboration diagram for PerfMon::LinFitSglPass:

Public Member Functions
	LinFitSglPass ()
	~LinFitSglPass ()
void	addPoint (const double &, const double &)
void	getFit (double &offset, double &slope) const
void	reset ()
unsigned	nPoints () const
double	slope () const

Private Attributes
unsigned	m_n
double	m_sumx
double	m_sumy
double	m_sumxy
double	m_sumxx

Detailed Description

Definition at line 22 of file LinFitSglPass.h.

Constructor & Destructor Documentation

LinFitSglPass()

PerfMon::LinFitSglPass::LinFitSglPass ( )

inline

Definition at line 45 of file LinFitSglPass.h.

  :  m_n(0),m_sumx(0),m_sumy(0),m_sumxy(0),m_sumxx(0)
{
}

~LinFitSglPass()

PerfMon::LinFitSglPass::~LinFitSglPass ( )

inline

Definition at line 26 of file LinFitSglPass.h.

{}

Member Function Documentation

addPoint()

void PerfMon::LinFitSglPass::addPoint ( const double & x, const double & y )

inline

Definition at line 56 of file LinFitSglPass.h.

{
  ++m_n;
  m_sumx  +=   x;
  m_sumy  +=   y;
  m_sumxy += x*y;
  m_sumxx += x*x;
}

getFit()

void PerfMon::LinFitSglPass::getFit ( double & offset, double & slope ) const

inline

Definition at line 65 of file LinFitSglPass.h.

{
  if (m_n<2) {
    offset=slope=0;
  } else {
    slope  = (m_sumxy*m_n-m_sumx*m_sumy)/(m_sumxx*m_n-m_sumx*m_sumx);
    offset = (m_sumy-slope*m_sumx)/m_n;
  }
}

nPoints()

unsigned PerfMon::LinFitSglPass::nPoints ( ) const

inline

Definition at line 31 of file LinFitSglPass.h.

{ return m_n; }

reset()

void PerfMon::LinFitSglPass::reset ( )

inline

Definition at line 50 of file LinFitSglPass.h.

{
  m_n=0;
  m_sumx=m_sumy=m_sumxy=m_sumxx=0;
}

slope()

double PerfMon::LinFitSglPass::slope ( ) const

inline

Definition at line 75 of file LinFitSglPass.h.

{
  double offset,slope;
  getFit(offset,slope);
  return slope;
}

Member Data Documentation

m_n

unsigned PerfMon::LinFitSglPass::m_n

private

Definition at line 34 of file LinFitSglPass.h.

m_sumx

double PerfMon::LinFitSglPass::m_sumx

private

Definition at line 35 of file LinFitSglPass.h.

m_sumxx

double PerfMon::LinFitSglPass::m_sumxx

private

Definition at line 38 of file LinFitSglPass.h.

m_sumxy

double PerfMon::LinFitSglPass::m_sumxy

private

Definition at line 37 of file LinFitSglPass.h.

m_sumy

double PerfMon::LinFitSglPass::m_sumy

private

Definition at line 36 of file LinFitSglPass.h.

---

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

• LinFitSglPass.h