类 Normalize

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

public class Normalize extends Filter implements UnsupervisedFilter, OptionHandler
An instance filter that normalize instances considering only numeric attributes and ignoring class index.

Valid options are:

 -N <num>
  Specify the norm that each instance must have (default 1.0)
 -L <num>
  Specify L-norm to use (default 2.0)
版本:
$Revision: 5548 $
作者:
Julien Prados
另请参阅:
  • 构造器详细资料

    • Normalize

      public Normalize()
  • 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
    • LNormTipText

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

      public String normTipText()
      Returns the tip text for this property
      返回:
      tip text for this property 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:

       -N <num>
        Specify the norm that each instance must have (default 1.0)
       -L <num>
        Specify L-norm to use (default 2.0)
      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
    • getNorm

      public double getNorm()
      Get the instance's Norm.
      返回:
      the Norm
    • setNorm

      public void setNorm(double newNorm)
      Set the norm of the instances
      参数:
      newNorm - the norm to wich the instances must be set
    • getLNorm

      public double getLNorm()
      Get the L Norm used.
      返回:
      the L-norm used
    • setLNorm

      public void setLNorm(double newLNorm)
      Set the L-norm to used
      参数:
      newLNorm - the L-norm
    • 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 format cannot be processed
    • input

      public boolean input(Instance instance) throws Exception
      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.
      NullPointerException - if the input format has not been defined.
      Exception - if the input instance was not of the correct format or if there was a problem with the filtering.
    • 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