edu.udo.cs.miningmart.operator
Class AssignModalValue

java.lang.Object
  edu.udo.cs.miningmart.operator.ExecutableOperator
      edu.udo.cs.miningmart.operator.FeatureConstruction
          edu.udo.cs.miningmart.operator.MissingValues
              edu.udo.cs.miningmart.operator.AssignModalValue

public class AssignModalValue
extends MissingValues

This operator replaces missing values with the modal value of that column.

Version:

$Id: AssignModalValue.java,v 1.6 2006/09/27 14:59:57 euler Exp $

Author:

Timm Euler

Constructor Summary

AssignModalValue()

Method Summary

java.lang.String

generateValueForOp(Column columnWithMissingValues) The abstract method to be implemented by the subclasses.

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

generateSQL

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

AssignModalValue

public AssignModalValue()

Method Detail

generateValueForOp

public java.lang.String generateValueForOp(Column columnWithMissingValues)
                                    throws M4CompilerError

Description copied from class: MissingValues

The abstract method to be implemented by the subclasses.

Specified by:

generateValueForOp in class MissingValues

Parameters:

columnWithMissingValues - The Column which has some missing values.

Returns:

A String with an SQL definition which is used to replace the missing values of the given column. It must include quotes if necessary.

Throws:

M4CompilerError - A simple exception object with an error message.

See Also:

miningmart.operator.MissingValues#generateValueForOp(Column)