类 ZeroR

java.lang.Object
weka.classifiers.Classifier
weka.classifiers.rules.ZeroR
所有已实现的接口:
Serializable, Cloneable, Sourcable, CapabilitiesHandler, OptionHandler, RevisionHandler, WeightedInstancesHandler

public class ZeroR extends Classifier implements WeightedInstancesHandler, Sourcable
Class for building and using a 0-R classifier. Predicts the mean (for a numeric class) or the mode (for a nominal class).

Valid options are:

 -D
  If set, classifier is run in debug mode and
  may output additional info to the console
版本:
$Revision: 5529 $
作者:
Eibe Frank (eibe@cs.waikato.ac.nz)
另请参阅:
  • 构造器详细资料

    • ZeroR

      public ZeroR()
  • 方法详细资料

    • globalInfo

      public String globalInfo()
      Returns a string describing classifier
      返回:
      a description suitable for displaying in the explorer/experimenter gui
    • getCapabilities

      public Capabilities getCapabilities()
      Returns default capabilities of the classifier.
      指定者:
      getCapabilities 在接口中 CapabilitiesHandler
      覆盖:
      getCapabilities 在类中 Classifier
      返回:
      the capabilities of this classifier
      另请参阅:
    • buildClassifier

      public void buildClassifier(Instances instances) throws Exception
      Generates the classifier.
      指定者:
      buildClassifier 在类中 Classifier
      参数:
      instances - set of instances serving as training data
      抛出:
      Exception - if the classifier has not been generated successfully
    • classifyInstance

      public double classifyInstance(Instance instance)
      Classifies a given instance.
      覆盖:
      classifyInstance 在类中 Classifier
      参数:
      instance - the instance to be classified
      返回:
      index of the predicted class
    • distributionForInstance

      public double[] distributionForInstance(Instance instance) throws Exception
      Calculates the class membership probabilities for the given test instance.
      覆盖:
      distributionForInstance 在类中 Classifier
      参数:
      instance - the instance to be classified
      返回:
      predicted class probability distribution
      抛出:
      Exception - if class is numeric
    • toSource

      public String toSource(String className) throws Exception
      Returns a string that describes the classifier as source. The classifier will be contained in a class with the given name (there may be auxiliary classes), and will contain a method with the signature:
      
       public static double classify(Object[] i);
       
      where the array i contains elements that are either Double, String, with missing values represented as null. The generated code is public domain and comes with no warranty.
      指定者:
      toSource 在接口中 Sourcable
      参数:
      className - the name that should be given to the source class.
      返回:
      the object source described by a string
      抛出:
      Exception - if the souce can't be computed
    • toString

      public String toString()
      Returns a description of the classifier.
      覆盖:
      toString 在类中 Object
      返回:
      a description of the classifier as a string.
    • getRevision

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

      public static void main(String[] argv)
      Main method for testing this class.
      参数:
      argv - the options