GpCoreTools::Statistics Class Reference

Brief description of class still missing. More...

#include <Statistics.h>

Inheritance diagram for GpCoreTools::Statistics:

List of all members.

Public Member Functions
void	add (double val)
int	count () const
double	maximum () const
double	mean () const
double	minimum () const
void	reset ()
void	set (double val)
	Statistics ()
double	stddev () const
Protected Attributes
int	_count
double	_maximum
double	_minimum
double	_sum
double	_sum2

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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::Statistics::Statistics

(

)

Description of constructor still missing

References reset().

{
  reset();
}

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Member Function Documentation

void GpCoreTools::Statistics::add

(

double

val

)

Reimplemented in GpCoreTools::MovingStatistics.

References _count, _maximum, _minimum, _sum, and _sum2.

{
  _sum+=val;
  _sum2+=val*val;
  if(val<_minimum) _minimum=val;
  if(val>_maximum) _maximum=val;
  _count++;
}

int GpCoreTools::Statistics::count

(

)

const [inline]

{return _count;}

double GpCoreTools::Statistics::maximum

(

)

const [inline]

{return _maximum;}

double GpCoreTools::Statistics::mean

(

)

const

References _count, and _sum.

{
  switch(_count) {
  case 0:
    return 0.0;
  case 1:
    return _sum;
  default:
    return _sum/_count;
  }
}

double GpCoreTools::Statistics::minimum

(

)

const [inline]

{return _minimum;}

void GpCoreTools::Statistics::reset

(

)

References _count, _maximum, _minimum, _sum, and _sum2.

Referenced by GpCoreTools::MovingStatistics::reset(), and Statistics().

{
  _sum=0.0;
  _sum2=0.0;
  _minimum=-1e99;
  _maximum=1e99;
  _count=0;
}

void GpCoreTools::Statistics::set

(

double

val

)

Reimplemented in GpCoreTools::MovingStatistics.

References _count, _maximum, _minimum, _sum, and _sum2.

{
  _sum=val;
  _sum2=val*val;
  _minimum=val;
  _maximum=val;
  _count=1;
}

double GpCoreTools::Statistics::stddev

(

)

const

References _count, _sum, _sum2, and QGpCoreTools::sqrt().

{
  if(_count<2) {
    return 0.0;
  } else {
    double s=(_sum2-_sum*_sum/_count)/(_count-1);
    if(s<0.0) s=0.0;
    return sqrt(s);
  }
}

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Member Data Documentation

int GpCoreTools::Statistics::_count [protected]

Referenced by add(), GpCoreTools::MovingStatistics::add(), GpCoreTools::MovingStatistics::addMinMax(), mean(), reset(), set(), and stddev().

double GpCoreTools::Statistics::_maximum [protected]

Referenced by add(), GpCoreTools::MovingStatistics::addMinMax(), reset(), and set().

double GpCoreTools::Statistics::_minimum [protected]

Referenced by add(), GpCoreTools::MovingStatistics::addMinMax(), reset(), and set().

double GpCoreTools::Statistics::_sum [protected]

Referenced by add(), GpCoreTools::MovingStatistics::add(), GpCoreTools::MovingStatistics::addMinMax(), mean(), reset(), set(), and stddev().

double GpCoreTools::Statistics::_sum2 [protected]

Referenced by add(), GpCoreTools::MovingStatistics::add(), GpCoreTools::MovingStatistics::addMinMax(), reset(), set(), and stddev().

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

• GpCoreTools/Statistics.h
• GpCoreTools/Statistics.cpp