Package weka.knowledgeflow.steps

Class TestSetMaker

  • All Implemented Interfaces:
    java.io.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:
    Serialized Form

    • Constructor Detail

      • TestSetMaker

        public TestSetMaker()

    • Method Detail

      • stepInit

        public void stepInit()
        Initialize the step

      • getIncomingConnectionTypes

        public java.util.List<java.lang.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 java.util.List<java.lang.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​(java.lang.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