theplu::yat::statistics::averager_base< Derived > Class Template Reference

Base class for averager classes. More...

#include <yat/statistics/averager_base.h>

Inheritance diagram for theplu::yat::statistics::averager_base< Derived >:

Public Member Functions
	averager_base (void)
	Constructor.
virtual	~averager_base (void)=0
	Destructor.
void	add (double x, long n=1)
	add a data point More...
double	mean (void) const
	mean More...
long	n (void) const
	number of data points More...
void	rescale (double a)
	Rescales the object. More...
void	reset (void)
	Reset object. More...
double	sum_x (void) const

Protected Member Functions
void	add1 (double x, long int n)
void	add1 (double delta)
double	rescale1 (double x)

Protected Attributes
long int	n_
double	mean_
	mean

Detailed Description

template<class Derived>
class theplu::yat::statistics::averager_base< Derived >

Base class for averager classes.

This is a base class templated on the derived class (see curiously recurring template pattern), which implies there is no dynamic polymorphism but the concrete type must be decided at compile time.

The derived class, MyClass, needs to have the following features:

• DefaultConstructible
• Assignable
• a function add_impl(double, long int)
• a function rescale_impl(double)

These two functions need to be public or if you dont want to expose them to the world, make them private and declare averager_base<Derived> as friend.

A derived class is typically declared as

class MyClass : public averager_base<MyClass>
{
...
private:
  friend class averager_base<MyClass>;
  void add_impl(double, long int);
  void rescale_impl(double);
};

Since

yat 0.9

Member Function Documentation

add()

template<class Derived>

void theplu::yat::statistics::averager_base< Derived >::add ( double  x, long  n = 1  )

inline

add a data point

Adding n number of data point(s) with value x.

add1() [1/2]

template<class Derived >

void theplu::yat::statistics::averager_base< Derived >::add1 ( double  x, long int  n  )

protected

add n data points with value x

add1() [2/2]

template<class Derived >

void theplu::yat::statistics::averager_base< Derived >::add1 ( double  delta )

protected

add one data point with value delta + mean()

mean()

template<class Derived>

double theplu::yat::statistics::averager_base< Derived >::mean ( void  ) const

inline

mean

Returns

Mean of presented data,

n()

template<class Derived>

long theplu::yat::statistics::averager_base< Derived >::n ( void  ) const

inline

number of data points

Returns

Number of data points

rescale()

template<class Derived>

void theplu::yat::statistics::averager_base< Derived >::rescale ( double  a )

inline

Rescales the object.

,

rescale1()

template<class Derived >

double theplu::yat::statistics::averager_base< Derived >::rescale1 ( double  x )

protected

rescale as

reset()

template<class Derived>

void theplu::yat::statistics::averager_base< Derived >::reset ( void  )

inline

Reset object.

Restore Averager as if data were never added

sum_x()

template<class Derived>

double theplu::yat::statistics::averager_base< Derived >::sum_x ( void  ) const

inline

Returns

The sum of data values

Member Data Documentation

n_

template<class Derived>

long int theplu::yat::statistics::averager_base< Derived >::n_

protected

number of data points

---

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

• yat/statistics/averager_base.h