|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--weka.classifiers.Classifier | +--weka.classifiers.DistributionClassifier | +--weka.classifiers.DecisionStump
Class for building and using a decision stump. Usually used in conjunction with a boosting algorithm. Typical usage:
java weka.classifiers.LogitBoost -I 100 -W weka.classifiers.DecisionStump
-t training_data
Constructor Summary | |
DecisionStump()
|
Method Summary | |
void |
buildClassifier(Instances instances)
Generates the classifier. |
double[] |
distributionForInstance(Instance instance)
Calculates the class membership probabilities for the given test instance. |
static void |
main(String[] argv)
Main method for testing this class. |
String |
toSource(String className)
Returns the decision tree as Java source code. |
String |
toString()
Returns a description of the classifier. |
Methods inherited from class weka.classifiers.DistributionClassifier |
classifyInstance |
Methods inherited from class weka.classifiers.Classifier |
forName, makeCopies |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public DecisionStump()
Method Detail |
public void buildClassifier(Instances instances) throws Exception
buildClassifier
in class Classifier
instances
- set of instances serving as training data
Exception
- if the classifier has not been generated successfullypublic double[] distributionForInstance(Instance instance) throws Exception
distributionForInstance
in class DistributionClassifier
instance
- the instance to be classified
Exception
- if distribution can't be computedpublic String toSource(String className) throws Exception
toSource
in interface Sourcable
className
- the name that should be given to the source class.
Exception
- if something goes wrongpublic String toString()
toString
in class Object
public static void main(String[] argv)
argv
- the options
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |