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oracle.dmt.jdm.transform.normalize
Interface OraNormalizeTransform

All Superinterfaces:

OraTransformation

public interface OraNormalizeTransform

extends OraTransformation

Normalizing converts individual attribute values in such a way that all attributes values lie in the same range. Normally, values are converted to be in the range 0.0 to 1.0 or the range -1 to +1. Normalization ensures that attributes do no receive artificial weighting caused by differences in the ranges that they span. The package supports normalizing for numerical attribute only. This interface defines the normalization type of the transformation.

Method Summary

java.lang.String	getNormalizationDefinitionTable() Returns the normalization definition table name.
OraNormalizeType	getNormalizeType() Returns the default normalize type for all attributes.
int	getRoundingNumber() Get the rounding number.
java.lang.Double	getScale(java.lang.String attributeName) Get the scale value of a given attribute name from its normalization definition table.
java.lang.Double	getShift(java.lang.String attributeName) Get the shift value of a given attribute name from its normalization definition table.

Methods inherited from interface oracle.dmt.jdm.transform.OraTransformation

getExcludeColumnList, getTransformInputData, getTransformOutputData, isOutputView, setExcludeColumnList, setTransformInputData, setTransformOutputData

Method Detail

getNormalizeType

public OraNormalizeType getNormalizeType()

Returns the default normalize type for all attributes.

Returns:

default normalize type

getNormalizationDefinitionTable

public java.lang.String getNormalizationDefinitionTable()

Returns the normalization definition table name.

Returns:

linear normalization definition table name.

getRoundingNumber

public int getRoundingNumber()

Get the rounding number.

Returns:

getShift

public java.lang.Double getShift(java.lang.String attributeName)
                          throws javax.datamining.JDMException

Get the shift value of a given attribute name from its normalization definition table. Reutrns NULL if attribute name does not exist in the normalization definition table.

Parameters:

attributeName - attribute name

Returns:

Throws:

javax.datamining.JDMException

getScale

public java.lang.Double getScale(java.lang.String attributeName)
                          throws javax.datamining.JDMException

Get the scale value of a given attribute name from its normalization definition table. Reutrns NULL if attribute name does not exist in the normalization definition table.

Parameters:

attributeName - attribute name

Returns:

Throws:

javax.datamining.JDMException

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