Package adams.data.conversion

Class SpreadSheetToWekaInstances

  • All Implemented Interfaces:
    adams.core.AdditionalInformationHandler, adams.core.CleanUpHandler, adams.core.Destroyable, adams.core.GlobalInfoSupporter, adams.core.logging.LoggingLevelHandler, adams.core.logging.LoggingSupporter, adams.core.option.OptionHandler, adams.core.QuickInfoSupporter, adams.core.ShallowCopySupporter<adams.data.conversion.AbstractConversion>, adams.core.SizeOfHandler, adams.core.Stoppable, adams.data.conversion.Conversion, Serializable
    public class SpreadSheetToWekaInstances
extends adams.data.conversion.AbstractConversion
    Generates a weka.core.Instances object from a SpreadSheet object.
    If there are too many unique lables for a NOMINAL attribute, it gets turned into a STRING attribute (see 'maxLabels' property). 

    -logging-level <OFF|SEVERE|WARNING|INFO|CONFIG|FINE|FINER|FINEST> (property: loggingLevel)
    The logging level for outputting errors and debugging output.
    default: WARNING
 
    -max-labels <int> (property: maxLabels)
    The maximum number of labels that a NOMINAL attribute can have before it 
    is switched to a STRING attribute; use -1 to enforce STRING attributes.
    default: 25
    minimum: -1
    Author:
    fracpete (fracpete at waikato dot ac dot nz)
    See Also:
    Serialized Form

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected int m_MaxLabels
      the threshold for number of labels before an attribute gets switched to Attribute.STRING.

      • Fields inherited from class adams.data.conversion.AbstractConversion

        m_Input, m_Output, m_Owner, m_Stopped

      • Fields inherited from class adams.core.option.AbstractOptionHandler

        m_OptionManager

      • Fields inherited from class adams.core.logging.LoggingObject

        m_Logger, m_LoggingIsEnabled, m_LoggingLevel

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      Class accepts()
      Returns the class that is accepted as input.
      void defineOptions()
      Adds options to the internal list of options.
      protected Object doConvert()
      Performs the actual conversion.
      Class generates()
      Returns the class that is generated as output.
      int getMaxLabels()
      Returns the name of the global actor in use.
      String globalInfo()
      Returns a string describing the object.
      String maxLabelsTipText()
      Returns the tip text for this property.
      void setMaxLabels​(int value)
      Sets the maximum number of labels a nominal attribute can have.

      • Methods inherited from class adams.data.conversion.AbstractConversion

        checkData, cleanUp, convert, getAdditionalInformation, getInput, getInput, getOutput, getOutput, getOwner, getQuickInfo, reset, setInput, setOwner, shallowCopy, shallowCopy, stopExecution

      • Methods inherited from class adams.core.option.AbstractOptionHandler

        cleanUpOptions, destroy, finishInit, getDefaultLoggingLevel, getOptionManager, initialize, loggingLevelTipText, newOptionManager, setLoggingLevel, toCommandLine, toString

      • Methods inherited from class adams.core.logging.LoggingObject

        configureLogger, getLogger, getLoggingLevel, initializeLogging, isLoggingEnabled, sizeOf

      • Methods inherited from interface adams.core.logging.LoggingLevelHandler

        getLoggingLevel

    • Field Detail

      • m_MaxLabels

        protected int m_MaxLabels
        the threshold for number of labels before an attribute gets switched to Attribute.STRING.

    • Constructor Detail

      • SpreadSheetToWekaInstances

        public SpreadSheetToWekaInstances()

    • Method Detail

      • globalInfo

        public String globalInfo()
        Returns a string describing the object.
        Specified by:
        globalInfo in interface adams.core.GlobalInfoSupporter
        Specified by:
        globalInfo in class adams.core.option.AbstractOptionHandler
        Returns:
        a description suitable for displaying in the gui

      • defineOptions

        public void defineOptions()
        Adds options to the internal list of options.
        Specified by:
        defineOptions in interface adams.core.option.OptionHandler
        Overrides:
        defineOptions in class adams.core.option.AbstractOptionHandler

      • setMaxLabels

        public void setMaxLabels​(int value)
        Sets the maximum number of labels a nominal attribute can have.
        Parameters:
        value - the maximum

      • getMaxLabels

        public int getMaxLabels()
        Returns the name of the global actor in use.
        Returns:
        the global name

      • maxLabelsTipText

        public String maxLabelsTipText()
        Returns the tip text for this property.
        Returns:
        tip text for this property suitable for displaying in the GUI or for listing the options.

      • accepts

        public Class accepts()
        Returns the class that is accepted as input.
        Specified by:
        accepts in interface adams.data.conversion.Conversion
        Specified by:
        accepts in class adams.data.conversion.AbstractConversion
        Returns:
        the class

      • generates

        public Class generates()
        Returns the class that is generated as output.
        Specified by:
        generates in interface adams.data.conversion.Conversion
        Specified by:
        generates in class adams.data.conversion.AbstractConversion
        Returns:
        the class

      • doConvert

        protected Object doConvert()
                    throws Exception
        Performs the actual conversion.
        Specified by:
        doConvert in class adams.data.conversion.AbstractConversion
        Returns:
        the converted data
        Throws:
        Exception - if something goes wrong with the conversion