Package org.processmining.plugins.workshop.Yaguang.WekaDiscriminationTree

Class Stats

  • public class Stats
extends java.lang.Object
    Class implementing a statistical routine needed by J48 to compute its error estimate.
    Version:
    $Revision: 1.7 $
    Author:
    Eibe Frank (eibe@cs.waikato.ac.nz)

    • Constructor Summary

      Constructors 
      Constructor Description
      Stats()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static double addErrs​(double N, double e, float CF)
      Computes estimated extra error for given total number of instances and error using normal approximation to binomial distribution (and continuity correction).

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • Stats

        public Stats()

    • Method Detail

      • addErrs

        public static double addErrs​(double N,
                             double e,
                             float CF)
        Computes estimated extra error for given total number of instances and error using normal approximation to binomial distribution (and continuity correction).
        Parameters:
        N - number of instances
        e - observed error
        CF - confidence value