All Packages  Class Hierarchy  This Package  Previous  Next  Index  WEKA's home

Class weka.classifiers.j48.Stats 

java.lang.Object
   |
   +----weka.classifiers.j48.Stats
public class Stats
extends Object
Class implementing a statistical routine needed by J48. This code is adapted from Ross Quinlan's implementation of C4.5.

Version:
$Revision: 1.2 $
Author:
Eibe Frank (eibe@cs.waikato.ac.nz)

Constructor Index

o Stats()

Method Index

o addErrs(double, double, float)
Computes estimated extra error for given total number of instances and errors.

Constructors

o Stats 
 public Stats()

Methods

o addErrs 
 public static double addErrs(double N,
                              double e,
                              float CF)
Computes estimated extra error for given total number of instances and errors.

Parameters:
N - number of instances
e - observed error
CF - confidence value 
All Packages  Class Hierarchy  This Package  Previous  Next  Index  WEKA's home