This uses a combination of Euclidean distance for continuous attributes, and Hamming distance for nominal attributes. This version honors scale factors given by the user. See comments on GRowDistance. More...

#include <GDistance.h>

Inheritance diagram for GClasses::GRowDistanceScaled:

Public Member Functions
	GRowDistanceScaled ()

	GRowDistanceScaled (GDomNode *pNode)

virtual	~GRowDistanceScaled ()

virtual void	init (const GRelation *pRelation, bool own)
	See the comment for GDistanceMetric::init. More...

virtual double *	scaleFactors ()
	Returns the vector of scalar values associated with each dimension. More...

virtual GDomNode *	serialize (GDom *pDoc) const
	See the comment for GDistanceMetric::serialize. More...

virtual double	squaredDistance (const double pA, const double pB) const
	Returns the scaled distance between pA and pB. More...

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

	GDistanceMetric (GDomNode *pNode)

virtual	~GDistanceMetric ()

double	operator() (const std::vector< double > &a, const std::vector< double > &b) const
	Return squaredDistance(a,b). Allows dissimilarity metrics to be used as function objects. Do not override. Override squaredDistance(a,b) instead. See GDistanceMetric::squaredDistance(const std::vector<double>&, const std::vector<double>&) More...

double	operator() (const double pA, const double pB) const
	Return squaredDistance(pA, pB). Allows dissimilarity metrics to be used as function objects. Do not override. Override squaredDistance(pA,pB) instead. See GDistanceMetric::squaredDistance(const double, const double) More...

const GRelation *	relation () const
	Returns the relation that specifies the meaning of the vector elements. More...

virtual double	squaredDistance (const std::vector< double > &a, const std::vector< double > &b) const
	Return the squared distance (or squared dissimilarity) between the two specified vectors. More...

Protected Attributes
double *	m_pScaleFactors

Protected Attributes inherited from GClasses::GDistanceMetric
bool	m_ownRelation

const GRelation *	m_pRelation

Additional Inherited Members
Static Public Member Functions inherited from GClasses::GDistanceMetric
static GDistanceMetric *	deserialize (GDomNode *pNode)
	Deserializes a distance metric. More...

Protected Member Functions inherited from GClasses::GDistanceMetric
GDomNode *	baseDomNode (GDom pDoc, const char szClassName) const

void	setRelation (const GRelation *pRelation, bool own)
	Sets the relation to use with this metric. Takes ownership of the relation iff own is true. More...

Detailed Description

This uses a combination of Euclidean distance for continuous attributes, and Hamming distance for nominal attributes. This version honors scale factors given by the user. See comments on GRowDistance.