Package weka.filters.unsupervised.attribute

Class MergeInfrequentNominalValues

    • Constructor Detail

      • MergeInfrequentNominalValues

        public MergeInfrequentNominalValues()

    • Method Detail

      • globalInfo

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

      • listOptions

        public java.util.Enumeration<Option> listOptions()
        Returns an enumeration describing the available options.
        Specified by:
        listOptions in interface OptionHandler
        Overrides:
        listOptions in class Filter
        Returns:
        an enumeration of all the available options.

      • getOptions

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

      • setOptions

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

        Valid options are: 

         -N <int>
  The minimum frequency for a value to remain (default: 2).
 
         -R <range>
  Sets list of attributes to act on (or its inverse). 'first and 'last' are accepted as well.'
  E.g.: first-5,7,9,20-last
  (default: 1,2)
         -V
  Invert matching sense (i.e. act on all attributes not specified in list)
         -S
  Use short IDs for merged attribute values.
         -output-debug-info
  If set, filter is run in debug mode and
  may output additional info to the console
         -do-not-check-capabilities
  If set, filter capabilities are not checked before filter is built
  (use with caution).
        Specified by:
        setOptions in interface OptionHandler
        Overrides:
        setOptions in class Filter
        Parameters:
        options - the list of options as an array of strings
        Throws:
        java.lang.Exception - if an option is not supported

      • minimumFrequencyTipText

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

      • getMinimumFrequency

        public int getMinimumFrequency()
        Gets the minimum frequency.
        Returns:
        int the minimum frequency.

      • setMinimumFrequency

        public void setMinimumFrequency​(int minF)
        Sets the minimum frequency.
        Parameters:
        minF - the minimum frequency as an integer.

      • attributeIndicesTipText

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

      • getAttributeIndices

        public java.lang.String getAttributeIndices()
        Get the current range selection.
        Returns:
        a string containing a comma separated list of ranges

      • setAttributeIndices

        public void setAttributeIndices​(java.lang.String rangeList)
        Set which attributes are to be acted on (or not, if invert is true)
        Parameters:
        rangeList - a string representing the list of attributes. Since the string will typically come from a user, attributes are indexed from 1.
        eg: first-3,5,6-last

      • setAttributeIndicesArray

        public void setAttributeIndicesArray​(int[] attributes)
        Set which attributes are to be acted on (or not, if invert is true)
        Parameters:
        attributes - an array containing indexes of attributes to select. Since the array will typically come from a program, attributes are indexed from 0.

      • 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()
        Get whether the supplied attributes are to be acted on or all other attributes.
        Returns:
        true if the supplied attributes will be kept

      • setInvertSelection

        public void setInvertSelection​(boolean invert)
        Set whether selected attributes should be acted on or all other attributes.
        Parameters:
        invert - the new invert setting

      • useShortIDsTipText

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

      • getUseShortIDs

        public boolean getUseShortIDs()
        Get whether short IDs are to be used.
        Returns:
        true if short IDs are to be used.

      • setUseShortIDs

        public void setUseShortIDs​(boolean m_UseShortIDs)
        Sets whether short IDs are to be used.
        Parameters:
        m_UseShortIDs - if true, short IDs will be used

      • allowAccessToFullInputFormat

        public boolean allowAccessToFullInputFormat()
        We need access to the full input data in determineOutputFormat.
        Overrides:
        allowAccessToFullInputFormat in class SimpleBatchFilter
        Returns:
        whether determineOutputFormat has access to the full input dataset

      • main

        public static void main​(java.lang.String[] args)
        runs the filter with the given arguments
        Parameters:
        args - the commandline arguments