程序包 weka.estimators

类 NormalEstimator

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

public class NormalEstimator extends Estimator implements IncrementalEstimator
Simple probability estimator that places a single normal distribution over the observed values.
版本:
$Revision: 5540 $
作者:
Len Trigg (trigg@cs.waikato.ac.nz)
另请参阅:
  • 构造器详细资料

    • NormalEstimator

      public NormalEstimator(double precision)
      Constructor that takes a precision argument.
      参数:
      precision - the precision to which numeric values are given. For example, if the precision is stated to be 0.1, the values in the interval (0.25,0.35] are all treated as 0.3.
  • 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
    • 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:
    • getMean

      public double getMean()
      Return the value of the mean of this normal estimator.
      返回:
      the mean
    • getStdDev

      public double getStdDev()
      Return the value of the standard deviation of this normal estimator.
      返回:
      the standard deviation
    • getPrecision

      public double getPrecision()
      Return the value of the precision of this normal estimator.
      返回:
      the precision
    • getSumOfWeights

      public double getSumOfWeights()
      Return the sum of the weights for this normal estimator.
      返回:
      the sum of the weights
    • 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 numeric values