edu.udo.cs.miningmart.operator
Class LogScaling

java.lang.Object
  edu.udo.cs.miningmart.operator.ExecutableOperator
      edu.udo.cs.miningmart.operator.FeatureConstruction
          edu.udo.cs.miningmart.operator.Scaling
              edu.udo.cs.miningmart.operator.LogScaling

public class LogScaling
extends Scaling

Version:

$Id: LogScaling.java,v 1.7 2006/09/27 14:59:57 euler Exp $

Author:

Timm Euler

Constructor Summary

LogScaling()

Method Summary

java.lang.String	generateSQL(Column targetAttributeColumn) Abstract method to be implemented by all subclasses.
Value	getLogBase()

Methods inherited from class edu.udo.cs.miningmart.operator.FeatureConstruction

compileStatement, createStatement, execute, generateColumnForOp, getCurrentLoopNumber, getTheInputConcept, getTheOutputAttribute, getTheOutputAttribute, getTheTargetAttribute, getTheTargetAttribute, load, writeResults

Methods inherited from class edu.udo.cs.miningmart.operator.ExecutableOperator

autoPrint, checkConditions, doPrint, doPrint, executeBusinessSingleValueSqlRead, executeBusinessSingleValueSqlReadL, executeBusinessSqlRead, executeBusinessSqlWrite, executeM4SingleValueSqlRead, executeM4SingleValueSqlReadL, executeM4SqlRead, executeM4SqlWrite, getArtificalColumnName, getBusinessDbms, getHighestLoopNr, getM4Db, getM4Dbms, getM4ObjectFromCache, getName, getNextM4SequenceValue, getNumberOfLoops, getOperator, getOpParamsIterator, getParameter, getParameter, getParameterObjectsOfAllLoops, getSingleParameter, getSingleParameter, getStep, giveWarningForChangedInputData, handleAssertions, isDeselectedParameter, isLoopable, isManual, isStepable, print, putM4ObjectToCache, showCreateStatement, storedProceduresAvailable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LogScaling

public LogScaling()

Method Detail

getLogBase

public Value getLogBase()
                 throws M4CompilerError

Throws:

M4CompilerError

generateSQL

public java.lang.String generateSQL(Column targetAttributeColumn)
                             throws M4CompilerError

Description copied from class: FeatureConstruction

Abstract method to be implemented by all subclasses. In this method the SQL definition for the Column which this operator creates is created.

Specified by:

generateSQL in class Scaling

Parameters:

targetAttributeColumn - The Column to which this FeatureConstruction Operator is applied. Some subclasses may ignore this parameter.

Returns:

An SQL definition for a scaled column.

Throws:

M4CompilerError - A simple exception object with an error message.