GpCoreTools::Average Class Reference

Brief description of class still missing. More...

#include <Average.h>

List of all members.

Public Member Functions
void	add (double v)
	Average ()
int	badValue (double factor=3.0) const
void	calculate ()
int	count () const
double	mean () const
void	remove (int i)
void	reset ()
double	stddev () const

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Detailed Description

Brief description of class still missing.

Full description of class still missing

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Constructor & Destructor Documentation

GpCoreTools::Average::Average

(

)

{
  _mean=0.0;
  _stddev=0.0;
}

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Member Function Documentation

void GpCoreTools::Average::add

(

double

v

)

[inline]

{_values.push_back(v);}

int GpCoreTools::Average::badValue

(

double

factor = 3.0

)

const

{
  double stddev3=factor*_stddev;
  unsigned int n=_values.size();
  for(unsigned int i=0;i<n;i++) {
    if(fabs(_values[i]-_mean)>stddev3) {
      return i;
    }
  }
  return -1;
}

void GpCoreTools::Average::calculate

(

)

References QGpCoreTools::sqrt().

{
  unsigned int n=_values.size();
  // Get std deviation and discard any value outside three stddev
  double sum=0;
  double sum2=0;
  for(unsigned int i=0;i<n;i++) {
    double v=_values[i];
    sum+=v;
    sum2+=v*v;
  }
  _mean=sum/n;
  _stddev=(sum2-_mean*_mean*n)/(n-1);
  if(_stddev<0.0) _stddev=0.0;
  _stddev=sqrt(_stddev);
}

int GpCoreTools::Average::count

(

)

const [inline]

{return _values.size();}

double GpCoreTools::Average::mean

(

)

const [inline]

{return _mean;}

void GpCoreTools::Average::remove

(

int

i

)

{
  unsigned int n=_values.size();
  _values[i]=_values[n-1];
  _values.resize(n-1);
}

void GpCoreTools::Average::reset

(

)

[inline]

Referenced by LinkBuffer::bytesAvailable().

{_values.clear();}

double GpCoreTools::Average::stddev

(

)

const [inline]

{return _stddev;}

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

• GpCoreTools/Average.h
• GpCoreTools/Average.cpp