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

public class Add extends Filter implements UnsupervisedFilter, StreamableFilter, OptionHandler
An instance filter that adds a new attribute to the dataset. The new attribute will contain all missing values.

Valid options are:

 -T <NUM|NOM|STR|DAT>
  The type of attribute to create:
  NUM = Numeric attribute
  NOM = Nominal attribute
  STR = String attribute
  DAT = Date attribute
  (default: NUM)
 -C <index>
  Specify where to insert the column. First and last
  are valid indexes.(default: last)
 -N <name>
  Name of the new attribute.
  (default: 'Unnamed')
 -L <label1,label2,...>
  Create nominal attribute with given labels
  (default: numeric attribute)
 -F <format>
  The format of the date values (see ISO-8601)
  (default: yyyy-MM-dd'T'HH:mm:ss)
版本:
$Revision: 5543 $
作者:
Len Trigg (trigg@cs.waikato.ac.nz)
另请参阅:
  • 字段详细资料

    • TAGS_TYPE

      public static final Tag[] TAGS_TYPE
      the attribute type.
  • 构造器详细资料

    • Add

      public Add()
  • 方法详细资料

    • 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
    • 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 given list of options.

      Valid options are:

       -T <NUM|NOM|STR|DAT>
        The type of attribute to create:
        NUM = Numeric attribute
        NOM = Nominal attribute
        STR = String attribute
        DAT = Date attribute
        (default: NUM)
       -C <index>
        Specify where to insert the column. First and last
        are valid indexes.(default: last)
       -N <name>
        Name of the new attribute.
        (default: 'Unnamed')
       -L <label1,label2,...>
        Create nominal attribute with given labels
        (default: numeric attribute)
       -F <format>
        The format of the date values (see ISO-8601)
        (default: yyyy-MM-dd'T'HH:mm:ss)
      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
    • 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 if the outputFormat may be collected immediately
      抛出:
      Exception - if the format couldn'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 defined.
    • attributeNameTipText

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

      public String getAttributeName()
      Get the name of the attribute to be created.
      返回:
      the new attribute name
    • setAttributeName

      public void setAttributeName(String name)
      Set the new attribute's name.
      参数:
      name - the new name
    • attributeIndexTipText

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

      public String getAttributeIndex()
      Get the index of the attribute used.
      返回:
      the index of the attribute
    • setAttributeIndex

      public void setAttributeIndex(String attIndex)
      Sets index of the attribute used.
      参数:
      attIndex - the index of the attribute
    • nominalLabelsTipText

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

      public String getNominalLabels()
      Get the list of labels for nominal attribute creation.
      返回:
      the list of labels for nominal attribute creation
    • setNominalLabels

      public void setNominalLabels(String labelList)
      Set the labels for nominal attribute creation.
      参数:
      labelList - a comma separated list of labels
      抛出:
      IllegalArgumentException - if the labelList was invalid
    • attributeTypeTipText

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

      public void setAttributeType(SelectedTag value)
      Sets the type of attribute to generate.
      参数:
      value - the attribute type
    • getAttributeType

      public SelectedTag getAttributeType()
      Gets the type of attribute to generate.
      返回:
      the current attribute type.
    • dateFormatTipText

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

      public String getDateFormat()
      Get the date format, complying to ISO-8601.
      返回:
      the date format
    • setDateFormat

      public void setDateFormat(String value)
      Set the date format, complying to ISO-8601.
      参数:
      value - a comma separated list of labels
    • 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