程序包 weka.estimators

类 DiscreteEstimator

java.lang.Object
weka.estimators.Estimator
weka.estimators.DiscreteEstimator
所有已实现的接口:
Serializable, Cloneable, CapabilitiesHandler, OptionHandler, RevisionHandler, IncrementalEstimator

public class DiscreteEstimator extends Estimator implements IncrementalEstimator
Simple symbolic probability estimator based on symbol counts.
版本:
$Revision: 1.10 $
作者:
Len Trigg (trigg@cs.waikato.ac.nz)
另请参阅:
  • 构造器详细资料

    • DiscreteEstimator

      public DiscreteEstimator(int numSymbols, boolean laplace)
      Constructor
      参数:
      numSymbols - the number of possible symbols (remember to include 0)
      laplace - if true, counts will be initialised to 1
    • DiscreteEstimator

      public DiscreteEstimator(int nSymbols, double fPrior)
      Constructor
      参数:
      nSymbols - the number of possible symbols (remember to include 0)
      fPrior - value with which counts will be initialised
  • 方法详细资料

    • addValue

      public void addValue(double data, double weight)
      Add a new data value to the current estimator.
      指定者:
      addValue 在接口中 IncrementalEstimator
      覆盖:
      addValue 在类中 Estimator
      参数:
      data - the new data value
      weight - the weight assigned to the data value
    • getProbability

      public double getProbability(double data)
      Get a probability estimate for a value
      指定者:
      getProbability 在类中 Estimator
      参数:
      data - the value to estimate the probability of
      返回:
      the estimated probability of the supplied value
    • getNumSymbols

      public int getNumSymbols()
      Gets the number of symbols this estimator operates with
      返回:
      the number of estimator symbols
    • getCount

      public double getCount(double data)
      Get the count for a value
      参数:
      data - the value to get the count of
      返回:
      the count of the supplied value
    • getSumOfCounts

      public double getSumOfCounts()
      Get the sum of all the counts
      返回:
      the total sum of counts
    • toString

      public String toString()
      Display a representation of this estimator
      覆盖:
      toString 在类中 Object
    • 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 Estimator
      返回:
      the capabilities of this classifier
      另请参阅:
    • getRevision

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

      public static void main(String[] argv)
      Main method for testing this class.
      参数:
      argv - should contain a sequence of integers which will be treated as symbolic.