QGpCoreTools::ProcessStatistics Class Reference

#include <ProcessStatistics.h>

List of all members.

Public Member Functions
void	add (double newval)
void	addLog (double newval)
void	clear ()
int	count ()
void	current (double &mean, double &stddev)
void	currentLog (double &mean, double &stddev)
double	mean ()
double	meanLog ()
	ProcessStatistics ()
double	stddev ()
double	stddevLog ()
RealStatisticalValue	value ()
RealStatisticalValue	valueLog ()
Protected Attributes
int	_count
double	_sumxi
double	_sumxi2

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Constructor & Destructor Documentation

QGpCoreTools::ProcessStatistics::ProcessStatistics

(

)

[inline]

{clear();}

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Member Function Documentation

void QGpCoreTools::ProcessStatistics::add

(

double

newval

)

References _count, _sumxi, _sumxi2, and TRACE.

Referenced by MaxEntryList::meanValue().

{
  TRACE;
  // This way of computing the standard deviation is approximative
  // See chapter 14-1 from Numerical recipes for explanations
  // It does not correct the round-off errors
  _count++;
  _sumxi+=newval;
  _sumxi2+=newval*newval;
}

void QGpCoreTools::ProcessStatistics::addLog

(

double

newval

)

References _count, _sumxi, _sumxi2, and TRACE.

Referenced by MaxEntryList::meanValue().

{
  TRACE;
  double lv=log10(newval);
  _count++;
  _sumxi+=lv;
  _sumxi2+=lv*lv;
}

void QGpCoreTools::ProcessStatistics::clear

(

)

[inline]

{_sumxi=0.0; _sumxi2=0.0; _count=0;}

int QGpCoreTools::ProcessStatistics::count

(

)

[inline]

{return _count;}

void QGpCoreTools::ProcessStatistics::current	(	double &	mean,
		double &	stddev
	)

References _count, _sumxi, _sumxi2, QGpCoreTools::sqrt(), and TRACE.

Referenced by value().

{
  TRACE;
  mean=_sumxi/_count;
  double var=(_sumxi2-mean*mean*_count)/(_count-1);
  if(var>0.0) stddev=::sqrt(var); else stddev=0.0;
}

void QGpCoreTools::ProcessStatistics::currentLog	(	double &	mean,
		double &	stddev
	)

References _count, _sumxi, _sumxi2, QGpCoreTools::sqrt(), and TRACE.

Referenced by valueLog().

{
  TRACE;
  mean=_sumxi/_count;
  double var=(_sumxi2-mean*mean*_count)/(_count-1);
  if(var>0.0) {
    stddev=::sqrt(var);
    stddev =::pow(10.0, stddev);
  }
  else stddev=0.0;
  mean =::pow(10.0, mean);
}

double QGpCoreTools::ProcessStatistics::mean

(

)

[inline]

Referenced by stddev(), stddevLog(), value(), and valueLog().

{return _sumxi/_count;}

double QGpCoreTools::ProcessStatistics::meanLog

(

)

[inline]

{return pow(10.0, _sumxi/_count);}

double QGpCoreTools::ProcessStatistics::stddev

(

)

References _count, _sumxi, _sumxi2, mean(), QGpCoreTools::sqrt(), and TRACE.

Referenced by value(), and valueLog().

{
  TRACE;
  double mean=_sumxi/_count;
  double var=(_sumxi2-mean*mean*_count)/(_count-1);
  if(var>0.0) return ::sqrt(var); else return 0.0;
}

double QGpCoreTools::ProcessStatistics::stddevLog

(

)

References _count, _sumxi, _sumxi2, mean(), QGpCoreTools::sqrt(), and TRACE.

{
  TRACE;
  double mean=_sumxi/_count;
  double var=(_sumxi2-mean*mean*_count)/(_count-1);
  if(var>0.0) return ::pow(10.0, ::sqrt(var)); else return 0.0;
}

RealStatisticalValue QGpCoreTools::ProcessStatistics::value

(

)

References _count, current(), mean(), QGpCoreTools::StatisticalValue< numberType >::setMean(), QGpCoreTools::StatisticalValue< numberType >::setStddev(), QGpCoreTools::StatisticalValue< numberType >::setWeight(), stddev(), and TRACE.

Referenced by MaxEntryList::meanValue().

{
  TRACE;
  RealStatisticalValue v;
  double mean, stddev;
  current(mean, stddev);
  v.setMean(mean);
  v.setStddev(stddev);
  v.setWeight(_count);
  return v;
}

RealStatisticalValue QGpCoreTools::ProcessStatistics::valueLog

(

)

References _count, currentLog(), mean(), QGpCoreTools::StatisticalValue< numberType >::setMean(), QGpCoreTools::StatisticalValue< numberType >::setStddev(), QGpCoreTools::StatisticalValue< numberType >::setWeight(), stddev(), and TRACE.

Referenced by MaxEntryList::meanValue().

{
  TRACE;
  RealStatisticalValue v;
  double mean, stddev;
  currentLog(mean, stddev);
  v.setMean(mean);
  v.setStddev(stddev);
  v.setWeight(_count);
  return v;
}

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Member Data Documentation

int QGpCoreTools::ProcessStatistics::_count [protected]

Referenced by add(), addLog(), current(), currentLog(), stddev(), stddevLog(), value(), and valueLog().

double QGpCoreTools::ProcessStatistics::_sumxi [protected]

Referenced by add(), addLog(), current(), currentLog(), stddev(), and stddevLog().

double QGpCoreTools::ProcessStatistics::_sumxi2 [protected]

Referenced by add(), addLog(), current(), currentLog(), stddev(), and stddevLog().

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

• QGpCoreTools/ProcessStatistics.h
• QGpCoreTools/ProcessStatistics.cpp