Package adams.flow.transformer

Class WekaSubsets

  • All Implemented Interfaces:
    AdditionalInformationHandler, CleanUpHandler, Destroyable, GlobalInfoSupporter, LoggingLevelHandler, LoggingSupporter, OptionHandler, QuickInfoSupporter, ShallowCopySupporter<Actor>, SizeOfHandler, Stoppable, StoppableWithFeedback, VariablesInspectionHandler, VariableChangeListener, Actor, ErrorHandler, InputConsumer, OutputProducer, Serializable, Comparable
    public class WekaSubsets
extends AbstractTransformer
    Splits the dataset based on the unique values of the specified attribute: all rows with the same unique value form a subset.

    Input/output:
    - accepts:
       weka.core.Instances
    - generates:
       weka.core.Instances


    -logging-level <OFF|SEVERE|WARNING|INFO|CONFIG|FINE|FINER|FINEST> (property: loggingLevel)
    The logging level for outputting errors and debugging output.
    default: WARNING
 
    -name <java.lang.String> (property: name)
    The name of the actor.
    default: WekaSubsets
 
    -annotation <adams.core.base.BaseAnnotation> (property: annotations)
    The annotations to attach to this actor.
    default: 
 
    -skip <boolean> (property: skip)
    If set to true, transformation is skipped and the input token is just forwarded 
    as it is.
    default: false
 
    -stop-flow-on-error <boolean> (property: stopFlowOnError)
    If set to true, the flow gets stopped in case this actor encounters an error;
     useful for critical actors.
    default: false
 
    -index <adams.data.weka.WekaAttributeIndex> (property: index)
    The index of the attribute to use for splitting the dataset into subsets;
     An index is a number starting with 1; apart from attribute names (case-sensitive
    ), the following placeholders can be used as well: first, second, third, 
    last_2, last_1, last
    default: 1
    example: An index is a number starting with 1; apart from attribute names (case-sensitive), the following placeholders can be used as well: first, second, third, last_2, last_1, last
    Version:
    $Revision$
    Author:
    fracpete (fracpete at waikato dot ac dot nz)
    See Also:
    Serialized Form

    • Field Detail

      • m_Queue

        protected List<weka.core.Instances> m_Queue
        the generated subsets.

    • Constructor Detail

      • WekaSubsets

        public WekaSubsets()

    • Method Detail

      • setIndex

        public void setIndex​(WekaAttributeIndex value)
        Sets the index of the attribute to split on.
        Parameters:
        value - the index

      • getIndex

        public WekaAttributeIndex getIndex()
        Returns the index of the attribute to split on.
        Returns:
        the index

      • indexTipText

        public String indexTipText()
        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 the consumer accepts.
        Returns:
        the Class of objects that can be processed

      • generates

        public Class[] generates()
        Returns the class of objects that it generates.
        Returns:
        the Class of the generated tokens

      • doExecute

        protected String doExecute()
        Executes the flow item.
        Specified by:
        doExecute in class AbstractActor
        Returns:
        null if everything is fine, otherwise error message