Package weka.filters.unsupervised.attribute

Class StringToDate

  • All Implemented Interfaces:
    Serializable, weka.core.CapabilitiesHandler, weka.core.CapabilitiesIgnorer, weka.core.CommandlineRunnable, weka.core.OptionHandler, weka.core.RevisionHandler, weka.filters.StreamableFilter
    public class StringToDate
extends weka.filters.SimpleStreamFilter
    Parses the selected range of string attributes using the specified format and turns them into date ones.
    Author:
    FracPete (fracpete at waikato dot ac dot nz)
    See Also:
    Serialized Form

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static String DEFAULT_FORMAT  
      protected String m_Format
      the parse format.
      protected gnu.trove.set.TIntSet m_Indices
      the attribute indices to work on.
      protected WekaAttributeRange m_Range
      the attribute range to process.

      • Fields inherited from class weka.filters.Filter

        m_Debug, m_DoNotCheckCapabilities, m_FirstBatchDone, m_InputRelAtts, m_InputStringAtts, m_NewBatch, m_OutputRelAtts, m_OutputStringAtts

    • Constructor Summary

      Constructors 
      Constructor Description
      StringToDate()  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      protected weka.core.Instances determineOutputFormat​(weka.core.Instances inputFormat)
      Determines the output format based on the input format and returns this.
      String formatTipText()
      Returns the tip text for this property.
      weka.core.Capabilities getCapabilities()
      Returns the Capabilities of this filter.
      String getFormat()
      Returns the parse format to use.
      String[] getOptions()
      Gets the current settings of the Classifier.
      WekaAttributeRange getRange()
      Returns the first attribute range to use (regular expression on attribute names).
      String getRevision()
      Returns the revision string.
      String globalInfo()
      Returns a string describing this filter.
      Enumeration<weka.core.Option> listOptions()
      Returns an enumeration describing the available options.
      static void main​(String[] args)
      Main method for testing this class.
      protected weka.core.Instance process​(weka.core.Instance instance)
      processes the given instance (may change the provided instance) and returns the modified version.
      String rangeTipText()
      Returns the tip text for this property.
      protected void reset()
      resets the filter, i.e., m_NewBatch to true and m_FirstBatchDone to false.
      void setFormat​(String value)
      Sets the parse format to use.
      void setOptions​(String[] options)
      Parses a given list of options.
      void setRange​(WekaAttributeRange value)
      Sets the first attribute range to use (regular expression on attribute names).

      • Methods inherited from class weka.filters.SimpleStreamFilter

        batchFinished, hasImmediateOutputFormat, input, preprocess, process

      • Methods inherited from class weka.filters.SimpleFilter

        setInputFormat

      • Methods inherited from class weka.filters.Filter

        batchFilterFile, bufferInput, copyValues, copyValues, debugTipText, doNotCheckCapabilitiesTipText, filterFile, flushInput, getCapabilities, getDebug, getDoNotCheckCapabilities, getInputFormat, getOutputFormat, initInputLocators, initOutputLocators, inputFormatPeek, isFirstBatchDone, isNewBatch, isOutputFormatDefined, makeCopies, makeCopy, mayRemoveInstanceAfterFirstBatchDone, numPendingOutput, output, outputFormatPeek, outputPeek, postExecution, preExecution, push, push, resetQueue, run, runFilter, setDebug, setDoNotCheckCapabilities, setOutputFormat, testInputFormat, toString, useFilter, wekaStaticWrapper

    • Field Detail

      • m_Indices

        protected gnu.trove.set.TIntSet m_Indices
        the attribute indices to work on.

      • m_Format

        protected String m_Format
        the parse format.

    • Constructor Detail

      • StringToDate

        public StringToDate()

    • Method Detail

      • globalInfo

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

      • listOptions

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

      • setOptions

        public void setOptions​(String[] options)
                throws Exception
        Parses a given list of options.
        Specified by:
        setOptions in interface weka.core.OptionHandler
        Overrides:
        setOptions in class weka.filters.Filter
        Parameters:
        options - the list of options as an array of strings
        Throws:
        Exception - if an option is not supported

      • getOptions

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

      • setRange

        public void setRange​(WekaAttributeRange value)
        Sets the first attribute range to use (regular expression on attribute names).
        Parameters:
        value - the expression

      • getRange

        public WekaAttributeRange getRange()
        Returns the first attribute range to use (regular expression on attribute names).
        Returns:
        the expression

      • rangeTipText

        public String rangeTipText()
        Returns the tip text for this property.
        Returns:
        tip text for this property suitable for displaying in the GUI or for listing the options.

      • setFormat

        public void setFormat​(String value)
        Sets the parse format to use.
        Parameters:
        value - the format

      • getFormat

        public String getFormat()
        Returns the parse format to use.
        Returns:
        the format

      • formatTipText

        public String formatTipText()
        Returns the tip text for this property.
        Returns:
        tip text for this property suitable for displaying in the GUI or for listing the options.

      • getCapabilities

        public weka.core.Capabilities getCapabilities()
        Returns the Capabilities of this filter. Derived filters have to override this method to enable capabilities.
        Specified by:
        getCapabilities in interface weka.core.CapabilitiesHandler
        Overrides:
        getCapabilities in class weka.filters.Filter
        Returns:
        the capabilities of this object
        See Also:
        Capabilities

      • reset

        protected void reset()
        resets the filter, i.e., m_NewBatch to true and m_FirstBatchDone to false.
        Overrides:
        reset in class weka.filters.SimpleFilter

      • determineOutputFormat

        protected weka.core.Instances determineOutputFormat​(weka.core.Instances inputFormat)
                                             throws Exception
        Determines the output format based on the input format and returns this. In case the output format cannot be returned immediately, i.e., hasImmediateOutputFormat() returns false, then this method will called from batchFinished() after the call of preprocess(Instances), in which, e.g., statistics for the actual processing step can be gathered.
        Specified by:
        determineOutputFormat in class weka.filters.SimpleStreamFilter
        Parameters:
        inputFormat - the input format to base the output format on
        Returns:
        the output format
        Throws:
        Exception - in case the determination goes wrong
        See Also:
        SimpleStreamFilter.hasImmediateOutputFormat(), SimpleStreamFilter.batchFinished(), SimpleStreamFilter.preprocess(Instances)

      • process

        protected weka.core.Instance process​(weka.core.Instance instance)
                              throws Exception
        processes the given instance (may change the provided instance) and returns the modified version.
        Specified by:
        process in class weka.filters.SimpleStreamFilter
        Parameters:
        instance - the instance to process
        Returns:
        the modified data
        Throws:
        Exception - in case the processing goes wrong

      • getRevision

        public String getRevision()
        Returns the revision string.
        Specified by:
        getRevision in interface weka.core.RevisionHandler
        Overrides:
        getRevision in class weka.filters.Filter
        Returns:
        the revision

      • main

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