lar::util::details::DataTracker2< T, W, PWR > Class Template Reference

Class tracking sums of variables up to power 2. More...

#include "StatCollector.h"

Inheritance diagram for lar::util::details::DataTracker2< T, W, PWR >:

Public Types
using	Weight_t = typename Base_t::Weight_t
using	Data_t = T
	type of data More...

Public Member Functions
Weight_t	SumSq () const
	Returns the weighted sum of the square of the entries. More...
void	add (Data_t v, Weight_t w)
	Adds the specified weight to the statistics. More...
void	clear ()
	Resets the count. More...
template<unsigned int N>
Weight_t	SumN () const
	Returns the sum of the values to the power N (1 <= N <= 2) More...
Weight_t	Sum (unsigned int n) const
	Returns the sum of the values to the power n (1 <= n <= 2, no check) More...
Weight_t	Sum () const
	Returns the weighted sum of the entries. More...

Static Public Attributes
static constexpr unsigned int	Power = PWR

Protected Attributes
std::array< Weight_t, Power >	sums

Private Types
using	Base_t = DataTracker< PWR, T, W >
	base class type More...

Detailed Description

template<typename T, typename W = T, unsigned int PWR = 2>
class lar::util::details::DataTracker2< T, W, PWR >

Class tracking sums of variables up to power 2.

Template Parameters

T	type of the quantity
W	type of the weight (as T by default)

Definition at line 145 of file StatCollector.h.

Member Typedef Documentation

template<typename T, typename W = T, unsigned int PWR = 2>

using lar::util::details::DataTracker2< T, W, PWR >::Base_t = DataTracker<PWR, T, W>

private

base class type

Definition at line 146 of file StatCollector.h.

template<unsigned int PWR, typename T, typename W = T>

using lar::util::details::DataTracker< PWR, T, W >::Data_t = T

inherited

type of data

Definition at line 103 of file StatCollector.h.

template<typename T, typename W = T, unsigned int PWR = 2>

using lar::util::details::DataTracker2< T, W, PWR >::Weight_t = typename Base_t::Weight_t

Definition at line 150 of file StatCollector.h.

Member Function Documentation

template<unsigned int PWR, typename T, typename W = T>

void lar::util::details::DataTracker< PWR, T, W >::add ( Data_t  v, Weight_t  w  )

inlineinherited

Adds the specified weight to the statistics.

Definition at line 110 of file StatCollector.h.

Referenced by lar::util::details::FitDataCollector< T, D >::add().

        {
          Weight_t x = w;
          for (size_t i = 0; i < Power; ++i)
            sums[i] += (x *= v);
        }

template<unsigned int PWR, typename T, typename W = T>

void lar::util::details::DataTracker< PWR, T, W >::clear ( )

inlineinherited

Resets the count.

Definition at line 118 of file StatCollector.h.

Referenced by lar::util::details::FitDataCollector< T, D >::clear().

{ sums.fill(Data_t(0)); }

template<unsigned int PWR, typename T, typename W = T>

Weight_t lar::util::details::DataTracker< PWR, T, W >::Sum ( unsigned int  n ) const

inlineinherited

Returns the sum of the values to the power n (1 <= n <= 2, no check)

Definition at line 129 of file StatCollector.h.

Referenced by lar::util::details::FitDataCollector< T, D >::Print(), and lar::util::details::FitDataCollector< T, D >::XNY().

{ return sums[n - 1]; }

template<unsigned int PWR, typename T, typename W = T>

Weight_t lar::util::details::DataTracker< PWR, T, W >::Sum ( ) const

inlineinherited

Returns the weighted sum of the entries.

Definition at line 132 of file StatCollector.h.

{ return SumN<1>(); }

template<unsigned int PWR, typename T, typename W = T>

template<unsigned int N>

Weight_t lar::util::details::DataTracker< PWR, T, W >::SumN ( ) const

inlineinherited

Returns the sum of the values to the power N (1 <= N <= 2)

Definition at line 122 of file StatCollector.h.

        {
          static_assert((N > 0) && (N <= Power), "Invalid sum of power requested");
          return sums[N - 1];
        } // SumN()

template<typename T, typename W = T, unsigned int PWR = 2>

Weight_t lar::util::details::DataTracker2< T, W, PWR >::SumSq ( ) const

inline

Returns the weighted sum of the square of the entries.

Definition at line 153 of file StatCollector.h.

{ return Base_t::sums[1]; }

Member Data Documentation

template<unsigned int PWR, typename T, typename W = T>

constexpr unsigned int lar::util::details::DataTracker< PWR, T, W >::Power = PWR

staticinherited

Definition at line 100 of file StatCollector.h.

Referenced by lar::util::details::FitDataCollector< T, D >::Print().

template<unsigned int PWR, typename T, typename W = T>

std::array<Weight_t, Power> lar::util::details::DataTracker< PWR, T, W >::sums

protectedinherited

Definition at line 135 of file StatCollector.h.

---

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

• lardataalg/v09_17_03/source/lardataalg/Utilities/StatCollector.h