类 RemovePercentage

java.lang.Object
weka.filters.Filter
weka.filters.unsupervised.instance.RemovePercentage
所有已实现的接口:
Serializable, CapabilitiesHandler, OptionHandler, RevisionHandler, UnsupervisedFilter

public class RemovePercentage extends Filter implements UnsupervisedFilter, OptionHandler
A filter that removes a given percentage of a dataset.

Valid options are:

 -P <percentage>
  Specifies percentage of instances to select. (default 50)
 
 -V
  Specifies if inverse of selection is to be output.
 
版本:
$Revision: 5548 $
作者:
Richard Kirkby (eibe@cs.waikato.ac.nz), Eibe Frank (eibe@cs.waikato.ac.nz)
另请参阅:
  • 构造器详细资料

    • RemovePercentage

      public RemovePercentage()
  • 方法详细资料

    • listOptions

      public Enumeration listOptions()
      Gets 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 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.
       
      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
    • globalInfo

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

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

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

      public void setPercentage(double percent)
      Sets the percentage of intances to select.
      参数:
      percent - the percentage
      抛出:
      IllegalArgumentException - if percentage out of range
    • invertSelectionTipText

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

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

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

      public Capabilities getCapabilities()
      Returns the Capabilities of this filter.
      指定者:
      getCapabilities 在接口中 CapabilitiesHandler
      覆盖:
      getCapabilities 在类中 Filter
      返回:
      the capabilities of this object
      另请参阅:
    • setInputFormat

      public boolean setInputFormat(Instances instanceInfo) throws Exception
      Sets the format of the input 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 because outputFormat can be collected immediately
      抛出:
      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.
      覆盖:
      input 在类中 Filter
      参数:
      instance - the input instance
      返回:
      true if the filtered instance may now be collected with output().
      抛出:
      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.
      覆盖:
      batchFinished 在类中 Filter
      返回:
      true if there are instances pending output
      抛出:
      IllegalStateException - if no input structure has been defined
    • getRevision

      public String getRevision()
      Returns the revision string.
      指定者:
      getRevision 在接口中 RevisionHandler
      覆盖:
      getRevision 在类中 Filter
      返回:
      the revision
    • main

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