Package moa.streams

Class MultiTargetArffFileStream

    • Field Detail

      • arffFileOption

        public FileOption arffFileOption
      • outputAttributesOption

        public RangeOption outputAttributesOption
      • fileReader

        protected Reader fileReader
      • hitEndOfFile

        protected boolean hitEndOfFile
      • numInstancesRead

        protected int numInstancesRead
    • Constructor Detail

      • MultiTargetArffFileStream

        public MultiTargetArffFileStream()
      • MultiTargetArffFileStream

        public MultiTargetArffFileStream​(String arffFileName,
                                         String classIndices)
    • Method Detail

      • prepareForUseImpl

        public void prepareForUseImpl​(TaskMonitor monitor,
                                      ObjectRepository repository)
        Description copied from class: AbstractOptionHandler
        This method describes the implementation of how to prepare this object for use. All classes that extends this class have to implement prepareForUseImpl and not prepareForUse since prepareForUse calls prepareForUseImpl.
        Specified by:
        prepareForUseImpl in class AbstractOptionHandler
        Parameters:
        monitor - the TaskMonitor to use
        repository - the ObjectRepository to use
      • getHeader

        public InstancesHeader getHeader()
        Description copied from interface: ExampleStream
        Gets the header of this stream. This is useful to know attributes and classes. InstancesHeader is an extension of weka.Instances.
        Specified by:
        getHeader in interface ExampleStream<Example<Instance>>
        Returns:
        the header of this stream
      • estimatedRemainingInstances

        public long estimatedRemainingInstances()
        Description copied from interface: ExampleStream
        Gets the estimated number of remaining instances in this stream
        Specified by:
        estimatedRemainingInstances in interface ExampleStream<Example<Instance>>
        Returns:
        the estimated number of instances to get from this stream
      • hasMoreInstances

        public boolean hasMoreInstances()
        Description copied from interface: ExampleStream
        Gets whether this stream has more instances to output. This is useful when reading streams from files.
        Specified by:
        hasMoreInstances in interface ExampleStream<Example<Instance>>
        Returns:
        true if this stream has more instances to output
      • readNextInstanceFromFile

        protected boolean readNextInstanceFromFile()
      • getDescription

        public void getDescription​(StringBuilder sb,
                                   int indent)
        Description copied from interface: MOAObject
        Returns a string representation of this object. Used in AbstractMOAObject.toString to give a string representation of the object.
        Specified by:
        getDescription in interface MOAObject
        Parameters:
        sb - the stringbuilder to add the description
        indent - the number of characters to indent