A relation with a minimal memory footprint that assumes all attributes are continuous, or all of them are nominal and have the same number of possible values. More...

#include <GMatrix.h>

Inheritance diagram for GClasses::GUniformRelation:

Public Member Functions
	GUniformRelation (size_t attrCount, size_t valueCount=0)

	GUniformRelation (GDomNode *pNode)

virtual bool	areContinuous (size_t first=0, size_t count=INVALID_INDEX) const
	See the comment for GRelation::areContinuous. More...

virtual bool	areNominal (size_t first=0, size_t count=INVALID_INDEX) const
	See the comment for GRelation::areNominal. More...

virtual GRelation *	clone () const
	Returns a copy of this object. More...

virtual GRelation *	cloneMinimal () const
	Returns a copy of this object. More...

virtual GRelation *	cloneSub (size_t, size_t count) const
	Returns a deep copy of the specified subset of this relation. More...

virtual void	deleteAttribute (size_t index)
	Drop the specified attribute. More...

virtual bool	isCompatible (const GRelation &that) const
	Returns true iff this and that have the same number of values for each attribute. More...

virtual GDomNode *	serialize (GDom *pDoc) const
	Serializes this object. More...

virtual size_t	size () const
	Returns the number of attributes (columns) More...

virtual void	swapAttributes (size_t, size_t)
	Swap two attributes (since all attributes are identical, does nothing) More...

virtual RelationType	type () const
	Returns the type of relation. More...

virtual size_t	valueCount (size_t) const
	Returns the number of values in each nominal attribute (or 0 if the attributes are continuous) More...

Public Member Functions inherited from GClasses::GRelation
	GRelation ()

virtual	~GRelation ()

virtual std::string	attrNameStr (std::size_t nAttr) const
	Returns the name of the attribute with index nAttr as a standard string object or "" if the atribute has no name. More...

size_t	countRealSpaceDims (size_t nFirstAttr, size_t nAttrCount) const
	Counts the size of the corresponding real-space vector. More...

void	fromRealSpace (const double pIn, double pOut, size_t nFirstAttr, size_t nAttrCount, GRand *pRand) const
	Converts a real-space vector (pIn) to a row (pOut) More...

void	fromRealSpace (const double pIn, GPrediction pOut, size_t nFirstAttr, size_t nAttrCount) const
	Converts a real-space vector (pIn) to an array of predictions (pOut) More...

void	print (std::ostream &stream, const GMatrix *pData, size_t precision) const
	Prints as an ARFF file to the specified stream. (pData can be NULL if data is not available) More...

virtual void	printAttrName (std::ostream &stream, size_t column) const
	Prints the specified attribute name to a stream. More...

virtual void	printAttrValue (std::ostream &stream, size_t column, double value, const char *missing="?") const
	Prints the specified value to a stream. More...

void	printRow (std::ostream &stream, const double pRow, const char separator, const char *missing="?") const
	Print a single row of data in ARFF format. More...

void	save (const GMatrix pData, const char szFilename, size_t precision) const
	Saves to a file. More...

void	toRealSpace (const double pIn, double pOut, size_t nFirstAttr, size_t nAttrCount) const
	Converts a row (pIn) to a real-space vector (pOut) (pIn should point to the nFirstAttr'th element, not the first element) More...

Protected Attributes
size_t	m_attrCount

size_t	m_valueCount

Additional Inherited Members
Public Types inherited from GClasses::GRelation
enum	RelationType { UNIFORM, MIXED, ARFF }

Static Public Member Functions inherited from GClasses::GRelation
static GRelation *	deserialize (GDomNode *pNode)
	Load from a DOM. More...

static void	test ()
	Performs unit tests for this class. Throws an exception if there is a failure. More...

Detailed Description

A relation with a minimal memory footprint that assumes all attributes are continuous, or all of them are nominal and have the same number of possible values.