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## edu.udo.cs.miningmart.operator.uep
Class Grouping

    java.lang.Object
      edu.udo.cs.miningmart.operator.ExecutableOperator
          edu.udo.cs.miningmart.operator.FeatureConstruction
              edu.udo.cs.miningmart.operator.uep.Grouping

Direct Known Subclasses:
  ErrorBasedGroupingGivenMinCardinality, ErrorBasedGroupingGivenNoOfGroups, GroupingGivenMinCardinality, GroupingGivenNoOfGroups, ImplicitErrorBasedGrouping, UserDefinedGrouping, UserDefinedGroupingWithDefaultValue

    public abstract class Grouping

extends FeatureConstruction

M4 Compiler

Copyright: Copyright (c) 2002

Company: University Dortmund

Version:
  $Id: Grouping.java,v 1.9 2006/09/27 15:00:04 euler Exp $
Author:
  Felix Koschin

Constructor Summary
`Grouping()`

Method Summary
`java.lang.String[]` | `generateLabels(int num)`
`java.lang.String` | `generateSQL(Column theTargetAttributeColumn)` Abstract method to be implemented by all subclasses.
`protected boolean` | `useQuotes(Column targetAttribCol, Value[] theValues)`

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

### Grouping

    public Grouping()

Method Detail

### generateLabels

    public java.lang.String[] generateLabels(int num)
                                      throws M4CompilerError

  Throws:
    `M4CompilerError`

### generateSQL

    public java.lang.String generateSQL(Column theTargetAttributeColumn)
                                 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 `FeatureConstruction`
  Parameters:
    `theTargetAttributeColumn` - The Column to which this FeatureConstruction Operator is applied. Some subclasses may ignore this parameter.
  Returns:
    An SQL definition for the newly constructed Column.
  Throws:
    `M4CompilerError` - A simple exception object with an error message.

### useQuotes

    protected boolean useQuotes(Column targetAttribCol,
                                Value[] theValues)
                         throws M4CompilerError

  Throws:
    `M4CompilerError`

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