drwnTableFactorMapping Class Reference

Creates a mapping between entries in two tables. More...

Classes
class	iterator
	iterator for indexing entries in the tables More...

Public Member Functions
	drwnTableFactorMapping ()
	default constructor
	drwnTableFactorMapping (const vector< int > &dstVars, const vector< int > &srcVars, const drwnVarUniversePtr &pUniverse)
	dstVar is a superset of srcVar (and variables don't repeat) More...
bool	empty () const
	returns true if the mapping has size zero
bool	identity () const
	returns true if the mapping is identity (destiation variables and source variables are in the same order)
iterator	begin () const
	iterators
iterator	end () const
vector< int >	mapping () const
	returns the mapping of indexes from the source to the destiation

Protected Attributes
int	_targetSize
	number of entries in the target table
vector< int >	_targetCards
	cardinality of each variable in the target
vector< int >	_strideMapping
	stride mapping from source to target

Friends
class	iterator

Detailed Description

Creates a mapping between entries in two tables.

The target table must contain a superset of the variables of the source table.

Todo:

create a multi-table mapping (will reduce amount of repeated computation in iterators)

specialize for unary and pairwise cases

Constructor & Destructor Documentation

drwnTableFactorMapping::drwnTableFactorMapping ( const vector< int > &  dstVars, const vector< int > &  srcVars, const drwnVarUniversePtr &  pUniverse  )

inline

dstVar is a superset of srcVar (and variables don't repeat)

Todo:

group variables as above if appear contiguously in src and dst

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

• drwnTableFactorMapping.h