ppl::expr Namespace Reference

Namespaces
	constraint
	dist
	model
	prog
	var

Functions
template<class ExprType >
auto	activate (ExprType &&expr)
template<class ProgramType , class GenType >
void	init_params (ProgramType &program, GenType &gen, bool prune=true, double radius=2.)

Function Documentation

activate()

template<class ExprType >

auto ppl::expr::activate ( ExprType &&  expr )

inline

Activates expr with the correct offset values for each parameter and then activates the reference counts for each of the parameters. The total reference count for a parameter should be the number of ParamView objects referencing that parameter in the expression. Every inference algorithm must invoke this call. Otherwise, undefined behavior.

Template Parameters

ExprType

type of expression

Parameters

expr	expression to set parameter offsets

Returns

offset packs of continuous and discrete parameters, respectively

init_params()

template<class ProgramType , class GenType >

void ppl::expr::init_params ( ProgramType &  program, GenType &  gen, bool  prune = true, double  radius = 2.  )

inline

Initializes parameters with the given priors and conditional distributions based on the model. Random numbers are generated with gen. Assumes that model was activated and bound before. It only requires binding:

• unconstrained
• constrained
• visit count
• transformed parameter values