Package weka.knowledgeflow.steps

Class Associator

java.lang.Object
weka.knowledgeflow.steps.BaseStep
weka.knowledgeflow.steps.WekaAlgorithmWrapper
weka.knowledgeflow.steps.Associator
All Implemented Interfaces:
Serializable, BaseStepExtender, Step
@KFStep(name="Associator", category="Associations", toolTipText="Weka associator wrapper", iconPath="") public class Associator extends WekaAlgorithmWrapper
Step that wraps a Weka associator. Handles dataSet, trainingSet and testSet incoming connections. All connections are treated the same - i.e. are used as training data.
Version:
$Revision: $
Author:
Mark Hall (mhall{[at]}pentaho{[dot]}com)
See Also:

  • Constructor Details

    • Associator

      public Associator()

  • Method Details

    • getWrappedAlgorithmClass

      public Class getWrappedAlgorithmClass()
      Get the class of the algorithm being wrapped
      Specified by:
      getWrappedAlgorithmClass in class WekaAlgorithmWrapper
      Returns:
      the class of the wrapped algorithm

    • setWrappedAlgorithm

      public void setWrappedAlgorithm(Object algo)
      Set the wrapped algorithm
      Overrides:
      setWrappedAlgorithm in class WekaAlgorithmWrapper
      Parameters:
      algo - the wrapped algorithm

    • setAssociator

      @ProgrammaticProperty public void setAssociator(Associator associator)
      Set the associator to use. Is a convenience method - just calls setWrappedAlgorithm()
      Parameters:
      associator - the associator to use

    • getAssociator

      public Associator getAssociator()
      Get the associator to use. Is a convenience method - just calls getWrappedAlgorithm()
      Returns:
      the associator in use

    • stepInit

      public void stepInit() throws WekaException
      Initializes the step
      Throws:
      WekaException - if a problem occurs

    • processIncoming

      public void processIncoming(Data data) throws WekaException
      Processes incoming data
      Specified by:
      processIncoming in interface BaseStepExtender
      Specified by:
      processIncoming in interface Step
      Overrides:
      processIncoming in class BaseStep
      Parameters:
      data - the data to process
      Throws:
      WekaException - if a problem occurs

    • getIncomingConnectionTypes

      public List<String> getIncomingConnectionTypes()
      Get a list of incoming connection types that this step can accept at this time
      Returns:
      a list of incoming connections that this step can accept

    • getOutgoingConnectionTypes

      public List<String> getOutgoingConnectionTypes()
      Get a list of outgoing connections that this step can produce at this time
      Returns:
      a list of outgoing connection types

    • outputStructureForConnectionType

      public Instances outputStructureForConnectionType(String connectionName) throws WekaException
      If possible, get the output structure for the named connection type as a header-only set of instances. Can return null if the specified connection type is not representable as Instances or cannot be determined at present.
      Specified by:
      outputStructureForConnectionType in interface Step
      Overrides:
      outputStructureForConnectionType in class BaseStep
      Parameters:
      connectionName - the connection type to generate output structure for
      Returns:
      the output structure this step generates, or null if it can't be determined at this point in time
      Throws:
      WekaException - if a problem occurs