Package nltk :: Package classify :: Module decisiontree :: Class DecisionTreeClassifier

Class DecisionTreeClassifier

     object --+    
              |    
api.ClassifierI --+
                  |
                 DecisionTreeClassifier

Instance Methods

[hide private]

__init__(self, label, feature_name=None, decisions=None)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature

source code

list of (immutable)

labels(self)
Returns: the list of category labels used by this classifier.

source code

label

classify(self, featureset)
Returns: the most appropriate label for the given featureset.

source code

error(self, labeled_featuresets)

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pp(self, width=70, prefix='', depth=4) source code

__str__(self)
str(x)

source code

refine(self, labeled_featuresets, entropy_cutoff, depth_cutoff, support_cutoff)

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Inherited from api.ClassifierI: batch_classify, batch_prob_classify, prob_classify

Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__

Deprecated

Inherited from api.ClassifierI: batch_probdist, probdist

Static Methods

[hide private]

train(labeled_featuresets, entropy_cutoff=0.05, depth_cutoff=100, support_cutoff=10)

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leaf(labeled_featuresets)

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stump(feature_name, labeled_featuresets)

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best_stump(feature_names, labeled_featuresets)

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Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, label, feature_name=None, decisions=None)
(Constructor)

source code

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

Overrides: object.__init__: (inherited documentation)

labels(self)

source code

Returns: list of (immutable): the list of category labels used by this classifier.
Overrides: api.ClassifierI.labels: (inherited documentation)

classify(self, featureset)

source code

Returns: label: the most appropriate label for the given featureset.
Overrides: api.ClassifierI.classify: (inherited documentation)

str(self)
(Informal representation operator)

source code

str(x)

Overrides: object.__str__: (inherited documentation)

Class DecisionTreeClassifier

__init__(self, label, feature_name=None, decisions=None) (Constructor)

labels(self)

classify(self, featureset)

__str__(self) (Informal representation operator)

init(self, label, feature_name=None, decisions=None)
(Constructor)

str(self)
(Informal representation operator)