mln::accu::stat::var< T > Struct Template Reference
[On values]

Var accumulator class. More...

#include <var.hh>

Inheritance diagram for mln::accu::stat::var< T >:

List of all members.

Public Types
enum	{ dim = T::dim }
typedef T	argument
typedef Accumulator< void >	category
typedef E	exact_t
typedef algebra::vec< dim, float >	mean_t
	Type equipment.
typedef R	q_result
typedef algebra::mat< dim, dim, float >	result
Public Member Functions
bool	is_valid () const
	Check whether this accu returns a valid result.
mean_t	mean () const
	Get the mean vector.
unsigned	n_items () const
	Get the number of items.
R	subj_ ()
template<typename T>
void	take_as_init (const T &t)
	Take as initialization the value t.
template<typename T>
void	take_n_times (unsigned n, const T &t)
	Take n times the value t.
result	to_result () const
	Get the accumulator result (the var value).
	var ()
result	variance () const
	Get the variance matrix.
void	init ()
	Manipulators.
void	take (const var< T > &other)
void	take (const argument &v)
void	take_as_init_ (const argument &v)
	Default implementation of "take as initialization".
void	take_n_times_ (unsigned n_times, const argument &v)
	Default implementation of "take n times".
Protected Attributes
algebra::mat< dim, dim, float >	cov_
unsigned	n_
algebra::vec< dim, float >	sum_

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Detailed Description

template<typename T>
struct mln::accu::stat::var< T >

Var accumulator class.

Parameter T is the type of vectors

Definition at line 58 of file accu/stat/var.hh.

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Member Typedef Documentation

template<typename T>

typedef T mln::accu::stat::var< T >::argument

Definition at line 62 of file accu/stat/var.hh.

template<typename E>

typedef Accumulator<void> mln::Accumulator< E >::category [inherited]

Reimplemented from mln::Proxy< E >.

Definition at line 80 of file accumulator.hh.

template<typename E>

typedef E mln::Object< E >::exact_t [inherited]

Definition at line 172 of file object.hh.

template<typename T>

typedef algebra::vec<dim,float> mln::accu::stat::var< T >::mean_t

Type equipment.

Definition at line 88 of file accu/stat/var.hh.

template<typename R, typename E>

typedef R mln::accu::internal::base< R, E >::q_result [inherited]

Definition at line 58 of file base.hh.

template<typename T>

typedef algebra::mat<dim,dim,float> mln::accu::stat::var< T >::result

Reimplemented from mln::accu::internal::base< R, E >.

Definition at line 63 of file accu/stat/var.hh.

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Member Enumeration Documentation

template<typename T>

anonymous enum

Enumerator:

dim

Definition at line 61 of file accu/stat/var.hh.

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Constructor & Destructor Documentation

template<typename T>

mln::accu::stat::var< T >::var

(

)

[inline]

Definition at line 110 of file accu/stat/var.hh.

References mln::accu::stat::var< T >::init().

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Member Function Documentation

template<typename T>

void mln::accu::stat::var< T >::init

(

)

[inline]

Manipulators.

Definition at line 118 of file accu/stat/var.hh.

References mln::accu::stat::var< T >::cov_, mln::accu::stat::var< T >::n_, mln::algebra::mat< n, m, T >::set_all(), mln::algebra::vec< n, T >::set_all(), and mln::accu::stat::var< T >::sum_.

Referenced by mln::accu::stat::var< T >::var().

template<typename T>

bool mln::accu::stat::var< T >::is_valid

(

)

const [inline]

Check whether this accu returns a valid result.

Definition at line 213 of file accu/stat/var.hh.

References mln::accu::stat::var< T >::n_.

template<typename T>

var< T >::mean_t mln::accu::stat::var< T >::mean

(

)

const [inline]

Get the mean vector.

Definition at line 200 of file accu/stat/var.hh.

References mln::accu::stat::var< T >::n_, mln::accu::stat::var< T >::sum_, and mln::literal::zero.

template<typename T>

unsigned mln::accu::stat::var< T >::n_items

(

)

const [inline]

Get the number of items.

Definition at line 192 of file accu/stat/var.hh.

References mln::accu::stat::var< T >::n_.

template<typename R, typename E>

R base::subj_

(

)

[inline, inherited]

Definition at line 77 of file base.hh.

References mln::exact().

template<typename T>

void mln::accu::stat::var< T >::take

(

const var< T > &

other

)

[inline]

Definition at line 138 of file accu/stat/var.hh.

References mln::accu::stat::var< T >::cov_, and mln::accu::stat::var< T >::n_.

template<typename T>

void mln::accu::stat::var< T >::take

(

const argument &

v

)

[inline]

Definition at line 128 of file accu/stat/var.hh.

References mln::accu::stat::var< T >::cov_, mln::accu::stat::var< T >::n_, mln::accu::stat::var< T >::sum_, and mln::algebra::mat< n, m, T >::t().

template<typename E>

template<typename T>

void mln::Accumulator< E >::take_as_init

(

const T &

t

)

[inline, inherited]

Take as initialization the value t.

Dev note: this is a final method; override if needed by take_as_init_ (ending with '_').

Reimplemented in mln::accu::stat::variance< T, S, R >.

Definition at line 186 of file accumulator.hh.

References mln::exact(), and mln::mln_exact().

Referenced by mln::morpho::elementary::impl::gradient_on_function(), and mln::morpho::elementary::impl::gradient_on_function_fastest().

template<typename T>

void mln::accu::stat::var< T >::take_as_init_

(

const argument &

t

)

[inline]

Default implementation of "take as initialization".

Reimplemented from mln::Accumulator< E >.

Definition at line 147 of file accu/stat/var.hh.

References mln::accu::stat::var< T >::cov_, mln::accu::stat::var< T >::n_, mln::accu::stat::var< T >::sum_, and mln::algebra::mat< n, m, T >::t().

template<typename E>

template<typename T>

void mln::Accumulator< E >::take_n_times	(	unsigned	n,
		const T &	t
	)			[inline, inherited]

Take n times the value t.

Dev note: this is a final method; override if needed by take_as_init_ (ending with '_').

Definition at line 213 of file accumulator.hh.

References mln::exact(), and mln::mln_exact().

template<typename T>

void mln::accu::stat::var< T >::take_n_times_	(	unsigned	n,
		const argument &	t
	)			[inline]

Default implementation of "take n times".

Reimplemented from mln::Accumulator< E >.

Definition at line 157 of file accu/stat/var.hh.

References mln::accu::stat::var< T >::cov_, mln::accu::stat::var< T >::n_, mln::accu::stat::var< T >::sum_, and mln::algebra::mat< n, m, T >::t().

template<typename T>

var< T >::result mln::accu::stat::var< T >::to_result

(

)

const [inline]

Get the accumulator result (the var value).

Definition at line 168 of file accu/stat/var.hh.

References mln::accu::stat::var< T >::cov_, mln::accu::stat::var< T >::n_, mln::accu::stat::var< T >::sum_, mln::algebra::vec< n, T >::t(), and mln::literal::zero.

Referenced by mln::accu::stat::var< T >::variance().

template<typename T>

var< T >::result mln::accu::stat::var< T >::variance

(

)

const [inline]

Get the variance matrix.

Definition at line 184 of file accu/stat/var.hh.

References mln::accu::stat::var< T >::to_result().

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Member Data Documentation

template<typename T>

algebra::mat<dim,dim,float> mln::accu::stat::var< T >::cov_ [protected]

Definition at line 101 of file accu/stat/var.hh.

Referenced by mln::accu::stat::var< T >::init(), mln::accu::stat::var< T >::take(), mln::accu::stat::var< T >::take_as_init_(), mln::accu::stat::var< T >::take_n_times_(), and mln::accu::stat::var< T >::to_result().

template<typename T>

unsigned mln::accu::stat::var< T >::n_ [protected]

Definition at line 99 of file accu/stat/var.hh.

Referenced by mln::accu::stat::var< T >::init(), mln::accu::stat::var< T >::is_valid(), mln::accu::stat::var< T >::mean(), mln::accu::stat::var< T >::n_items(), mln::accu::stat::var< T >::take(), mln::accu::stat::var< T >::take_as_init_(), mln::accu::stat::var< T >::take_n_times_(), and mln::accu::stat::var< T >::to_result().

template<typename T>

algebra::vec<dim,float> mln::accu::stat::var< T >::sum_ [protected]

Definition at line 100 of file accu/stat/var.hh.

Referenced by mln::accu::stat::var< T >::init(), mln::accu::stat::var< T >::mean(), mln::accu::stat::var< T >::take(), mln::accu::stat::var< T >::take_as_init_(), mln::accu::stat::var< T >::take_n_times_(), and mln::accu::stat::var< T >::to_result().