Class TestSetMaker

java.lang.Object
weka.knowledgeflow.steps.BaseStep
weka.knowledgeflow.steps.TestSetMaker
All Implemented Interfaces:
Serializable, BaseStepExtender, Step

@KFStep(name="TestSetMaker", category="Evaluation", toolTipText="Make an incoming dataSet or trainingSet into a testSet", iconPath="weka/gui/knowledgeflow/icons/TestSetMaker.gif") public class TestSetMaker extends BaseStep
A step that makes an incoming dataSet or trainingSet into a testSet.
Author:
Mark Hall (mhall{[at]}pentaho{[dot]}com)
See Also:
  • Constructor Details

    • TestSetMaker

      public TestSetMaker()
  • Method Details

    • stepInit

      public void stepInit()
      Initialize the step
    • processIncoming

      public void processIncoming(Data data) throws WekaException
      Process an incoming data payload (if the step accepts incoming connections)
      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. Ideally (and if appropriate), this should take into account the state of the step and any existing incoming connections. E.g. a step might be able to accept one (and only one) incoming batch data connection.
      Returns:
      a list of incoming connections that this step can accept given its current state
    • getOutgoingConnectionTypes

      public List<String> getOutgoingConnectionTypes()
      Get a list of outgoing connection types that this step can produce. Ideally (and if appropriate), this should take into account the state of the step and the incoming connections. E.g. depending on what incoming connection is present, a step might be able to produce a trainingSet output, a testSet output or neither, but not both.
      Returns:
      a list of outgoing connections that this step can produce
    • 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 name of the connection type to get the output structure for
      Returns:
      the output structure as a header-only Instances object
      Throws:
      WekaException - if a problem occurs