类 PotentialClassIgnorer

java.lang.Object
weka.filters.Filter
weka.filters.unsupervised.attribute.PotentialClassIgnorer
所有已实现的接口:
Serializable, CapabilitiesHandler, OptionHandler, RevisionHandler
直接已知子类:
Center, Discretize, MathExpression, Normalize, NumericToBinary, ReplaceMissingValues, Standardize

public abstract class PotentialClassIgnorer extends Filter implements OptionHandler
This filter should be extended by other unsupervised attribute filters to allow processing of the class attribute if that's required. It the class is to be ignored it is essential that the extending filter does not change the position (i.e. index) of the attribute that is originally the class attribute !
版本:
$Revision: 1.7 $
作者:
Eibe Frank (eibe@cs.waikato.ac.nz), Mark Hall (mhall@cs.waikato.ac.nz)
另请参阅:
  • 构造器详细资料

    • PotentialClassIgnorer

      public PotentialClassIgnorer()
  • 方法详细资料

    • listOptions

      public Enumeration listOptions()
      Returns an enumeration describing the available options.
      指定者:
      listOptions 在接口中 OptionHandler
      返回:
      an enumeration of all the available options.
    • setOptions

      public void setOptions(String[] options) throws Exception
      Parses a list of options for this object.
      指定者:
      setOptions 在接口中 OptionHandler
      参数:
      options - the list of options as an array of strings
      抛出:
      Exception - if an option is not supported
    • getOptions

      public String[] getOptions()
      Gets the current settings of the filter.
      指定者:
      getOptions 在接口中 OptionHandler
      返回:
      an array of strings suitable for passing to setOptions
    • setInputFormat

      public boolean setInputFormat(Instances instanceInfo) throws Exception
      Sets the format of the input instances. If the filter is able to determine the output format before seeing any input instances, it does so here. This default implementation clears the output format and output queue, and the new batch flag is set. Overriders should call super.setInputFormat(Instances)
      覆盖:
      setInputFormat 在类中 Filter
      参数:
      instanceInfo - an Instances object containing the input instance structure (any instances contained in the object are ignored - only the structure is required).
      返回:
      true if the outputFormat may be collected immediately
      抛出:
      Exception - if the inputFormat can't be set successfully
    • getOutputFormat

      public Instances getOutputFormat()
      Gets the format of the output instances. This should only be called after input() or batchFinished() has returned true. The relation name of the output instances should be changed to reflect the action of the filter (eg: add the filter name and options).
      覆盖:
      getOutputFormat 在类中 Filter
      返回:
      an Instances object containing the output instance structure only.
      抛出:
      NullPointerException - if no input structure has been defined (or the output format hasn't been determined yet)
    • ignoreClassTipText

      public String ignoreClassTipText()
      Returns the tip text for this property
      返回:
      tip text for this property suitable for displaying in the explorer/experimenter gui
    • setIgnoreClass

      public void setIgnoreClass(boolean newIgnoreClass)
      Set the IgnoreClass value. Set this to true if the class index is to be unset before the filter is applied.
      参数:
      newIgnoreClass - The new IgnoreClass value.
    • getIgnoreClass

      public boolean getIgnoreClass()
      Gets the IgnoreClass value. If this to true then the class index is to unset before the filter is applied.
      返回:
      the current IgnoreClass value.