One factor on every repetition of a repeated block: the product of independent copies of a density, one per repetition, as a density over the whole block (decisions.md [product-factors]). More...

#include <EmrysFilter/Distributions/Product.h>

Public Types
using	Scalar = typename F::Scalar
	the scalar type
using	Index = Eigen::Index
	Eigen's index type.
using	SpaceType = BlockSpace
	the space the values live in
using	MomentsType = Moments<BlockSpace, Scalar>
	a mean and covariance together
using	VectorType = typename MomentsType::VectorType
	a value

Public Member Functions
	EachRepetition (F factor, BlockSpace space)
	factor on each repetition of space.
F const &	factor () const
BlockSpace const &	space () const
Index	count () const
Index	valueDimension () const
template<typename Derived>
Scalar	logDensity (Eigen::MatrixBase< Derived > const &x) const
auto	moments () const -> std::conditional_t< MomentsMayFail, std::expected< MomentsType, MomentsError >, MomentsType >

Static Public Attributes
static constexpr int	ValueDimensionAtCompileTime = MomentsType::ValueDimensionAtCompileTime
	the length of a value, or Eigen::Dynamic
static constexpr int	MaxValueDimensionAtCompileTime = MomentsType::MaxValueDimensionAtCompileTime
	a bound on the length of a value, or Eigen::Dynamic

Detailed Description

template<ProductFactor F, Space BlockSpace>
class Emrys::EachRepetition< F, BlockSpace >

One factor on every repetition of a repeated block: the product of independent copies of a density, one per repetition, as a density over the whole block (decisions.md [product-factors]).

onEach<Path>() makes one when a Product is placed, from the block's space there, so its count is the space instance's: a Gaussian factor with covariance \( R \) gives the block the covariance \( I \otimes R \). The factor is a density or parameters (see ProductFactor), in the space of the repeated block's one repetition, and its parameters are checked once, here.

Template Parameters

F	the factor's type, over one repetition
BlockSpace	the repeated block's space, a Repeated or a tag derived from one

See also: onEach(), class Product