weka.classifiers.j48
Class EntropySplitCrit
java.lang.Object
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+--weka.classifiers.j48.SplitCriterion
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+--weka.classifiers.j48.EntropyBasedSplitCrit
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+--weka.classifiers.j48.EntropySplitCrit
- All Implemented Interfaces:
- Serializable
- public final class EntropySplitCrit
- extends EntropyBasedSplitCrit
Class for computing the entropy for a given distribution.
- Version:
- $Revision: 1.4 $
- Author:
- Eibe Frank (eibe@cs.waikato.ac.nz)
- See Also:
- Serialized Form
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
EntropySplitCrit
public EntropySplitCrit()
splitCritValue
public final double splitCritValue(Distribution bags)
- Computes entropy for given distribution.
- Overrides:
splitCritValue
in class SplitCriterion
- Returns:
- value of splitting criterion. 0 by default
splitCritValue
public final double splitCritValue(Distribution train,
Distribution test)
- Computes entropy of test distribution with respect to training distribution.
- Overrides:
splitCritValue
in class SplitCriterion
- Returns:
- value of splitting criterion. 0 by default