Package adams.ml.data

Class WekaConverter

  • public class WekaConverter
extends Object
    Helper class for converting data to and fro Weka.
    Version:
    $Revision$
    Author:
    FracPete (fracpete at waikato dot ac dot nz)

    • Constructor Summary

      Constructors 
      Constructor Description
      WekaConverter()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static adams.ml.capabilities.Capabilities convertCapabilities​(weka.core.Capabilities caps)
      Converts Weka capabilities into ADAMS ones.
      static adams.ml.data.Dataset toDataset​(weka.core.Instances data)
      Converts a Weka Instances object into an ADAMS Dataset.
      static weka.core.Instance toInstance​(weka.core.Instances data, adams.data.spreadsheet.Row row)
      Turns an ADAMS dataset row into a Weka Instance.
      static weka.core.Instances toInstances​(adams.ml.data.Dataset data)
      Converts an ADAMS Dataset to Weka Instances.
      protected static void transferCapability​(weka.core.Capabilities fromCaps, weka.core.Capabilities.Capability fromCap, adams.ml.capabilities.Capabilities toCaps, adams.ml.capabilities.Capability toCap)
      Transfers the specified capability if enabled.

    • Constructor Detail

      • WekaConverter

        public WekaConverter()

    • Method Detail

      • toInstances

        public static weka.core.Instances toInstances​(adams.ml.data.Dataset data)
                                       throws Exception
        Converts an ADAMS Dataset to Weka Instances. Only sets the class attribute if the dataset has exactly one defined.
        Parameters:
        data - the data to convert
        Returns:
        the generated data
        Throws:
        Exception - if conversion fails

      • toDataset

        public static adams.ml.data.Dataset toDataset​(weka.core.Instances data)
                                       throws Exception
        Converts a Weka Instances object into an ADAMS Dataset.
        Parameters:
        data - the data to convert
        Returns:
        the generated data
        Throws:
        Exception - if conversion fail

      • toInstance

        public static weka.core.Instance toInstance​(weka.core.Instances data,
                                            adams.data.spreadsheet.Row row)
                                     throws Exception
        Turns an ADAMS dataset row into a Weka Instance.
        Parameters:
        data - the dataset to use as template
        row - the row to convert
        Returns:
        the generated instance
        Throws:
        Exception - if conversion fails

      • transferCapability

        protected static void transferCapability​(weka.core.Capabilities fromCaps,
                                         weka.core.Capabilities.Capability fromCap,
                                         adams.ml.capabilities.Capabilities toCaps,
                                         adams.ml.capabilities.Capability toCap)
        Transfers the specified capability if enabled. Also checks whether dependency is flagged.
        Parameters:
        fromCaps - the Weka capabilities
        fromCap - the Weka capability to check
        toCaps - the ADAMS capabilities
        toCap - the ADAMS capability to set, if necessary

      • convertCapabilities

        public static adams.ml.capabilities.Capabilities convertCapabilities​(weka.core.Capabilities caps)
        Converts Weka capabilities into ADAMS ones.
        Parameters:
        caps - the capabilities to convert
        Returns:
        the converted capabilities