Class RemovePercentage

    • Constructor Detail

      • RemovePercentage

        public RemovePercentage()
    • Method Detail

      • listOptions

        public java.util.Enumeration listOptions()
        Gets an enumeration describing the available options..
        Specified by:
        listOptions in interface OptionHandler
        Returns:
        an enumeration of all the available options.
      • setOptions

        public void setOptions​(java.lang.String[] options)
                        throws java.lang.Exception
        Parses a given list of options.

        Valid options are:

         -P <percentage>
          Specifies percentage of instances to select. (default 50)
         
         -V
          Specifies if inverse of selection is to be output.
         
        Specified by:
        setOptions in interface OptionHandler
        Parameters:
        options - the list of options as an array of strings
        Throws:
        java.lang.Exception - if an option is not supported
      • getOptions

        public java.lang.String[] getOptions()
        Gets the current settings of the filter.
        Specified by:
        getOptions in interface OptionHandler
        Returns:
        an array of strings suitable for passing to setOptions
      • globalInfo

        public java.lang.String globalInfo()
        Returns a string describing this filter
        Returns:
        a description of the filter suitable for displaying in the explorer/experimenter gui
      • percentageTipText

        public java.lang.String percentageTipText()
        Returns the tip text for this property
        Returns:
        tip text for this property suitable for displaying in the explorer/experimenter gui
      • getPercentage

        public double getPercentage()
        Gets the percentage of instances to select.
        Returns:
        the percentage.
      • setPercentage

        public void setPercentage​(double percent)
        Sets the percentage of intances to select.
        Parameters:
        percent - the percentage
        Throws:
        java.lang.IllegalArgumentException - if percentage out of range
      • invertSelectionTipText

        public java.lang.String invertSelectionTipText()
        Returns the tip text for this property
        Returns:
        tip text for this property suitable for displaying in the explorer/experimenter gui
      • getInvertSelection

        public boolean getInvertSelection()
        Gets if selection is to be inverted.
        Returns:
        true if the selection is to be inverted
      • setInvertSelection

        public void setInvertSelection​(boolean inverse)
        Sets if selection is to be inverted.
        Parameters:
        inverse - true if inversion is to be performed
      • setInputFormat

        public boolean setInputFormat​(Instances instanceInfo)
                               throws java.lang.Exception
        Sets the format of the input instances.
        Overrides:
        setInputFormat in class Filter
        Parameters:
        instanceInfo - an Instances object containing the input instance structure (any instances contained in the object are ignored - only the structure is required).
        Returns:
        true because outputFormat can be collected immediately
        Throws:
        java.lang.Exception - if the input format can't be set successfully
      • input

        public boolean input​(Instance instance)
        Input an instance for filtering. Ordinarily the instance is processed and made available for output immediately. Some filters require all instances be read before producing output.
        Overrides:
        input in class Filter
        Parameters:
        instance - the input instance
        Returns:
        true if the filtered instance may now be collected with output().
        Throws:
        java.lang.IllegalStateException - if no input format has been set.
      • batchFinished

        public boolean batchFinished()
        Signify that this batch of input to the filter is finished. Output() may now be called to retrieve the filtered instances.
        Overrides:
        batchFinished in class Filter
        Returns:
        true if there are instances pending output
        Throws:
        java.lang.IllegalStateException - if no input structure has been defined
      • main

        public static void main​(java.lang.String[] argv)
        Main method for testing this class.
        Parameters:
        argv - should contain arguments to the filter: use -h for help