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java.lang.Objectweka.classifiers.Classifier
weka.classifiers.rules.OneR
public class OneR
Class for building and using a 1R classifier. For more information, see
R.C. Holte (1993). Very simple classification rules perform well on most commonly used datasets. Machine Learning, Vol. 11, pp. 63-91.
Valid options are:
-B num
Specify the minimum number of objects in a bucket (default: 6).
| Constructor Summary | |
|---|---|
OneR()
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| Method Summary | |
|---|---|
void |
buildClassifier(Instances instances)
Generates the classifier. |
double |
classifyInstance(Instance inst)
Classifies a given instance. |
int |
getMinBucketSize()
Get the value of minBucketSize. |
java.lang.String[] |
getOptions()
Gets the current settings of the OneR classifier. |
java.lang.String |
globalInfo()
Returns a string describing classifier |
java.util.Enumeration |
listOptions()
Returns an enumeration describing the available options.. |
static void |
main(java.lang.String[] argv)
Main method for testing this class |
java.lang.String |
minBucketSizeTipText()
Returns the tip text for this property |
weka.classifiers.rules.OneR.OneRRule |
newNominalRule(Attribute attr,
Instances data,
int[] missingValueCounts)
Create a rule branching on this nominal attribute. |
weka.classifiers.rules.OneR.OneRRule |
newNumericRule(Attribute attr,
Instances data,
int[] missingValueCounts)
Create a rule branching on this numeric attribute |
weka.classifiers.rules.OneR.OneRRule |
newRule(Attribute attr,
Instances data)
Create a rule branching on this attribute. |
void |
setMinBucketSize(int v)
Set the value of minBucketSize. |
void |
setOptions(java.lang.String[] options)
Parses a given list of options. |
java.lang.String |
toString()
Returns a description of the classifier |
| Methods inherited from class weka.classifiers.Classifier |
|---|
debugTipText, distributionForInstance, forName, getDebug, makeCopies, makeCopy, setDebug |
| Methods inherited from class java.lang.Object |
|---|
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public OneR()
| Method Detail |
|---|
public java.lang.String globalInfo()
public double classifyInstance(Instance inst)
classifyInstance in class Classifierinst - the instance to be classified
public void buildClassifier(Instances instances)
throws java.lang.Exception
buildClassifier in class Classifierinstances - the instances to be used for building the classifier
java.lang.Exception - if the classifier can't be built successfully
public weka.classifiers.rules.OneR.OneRRule newRule(Attribute attr,
Instances data)
throws java.lang.Exception
attr - the attribute to branch ondata - the data to be used for creating the rule
java.lang.Exception - if the rule can't be built successfully
public weka.classifiers.rules.OneR.OneRRule newNominalRule(Attribute attr,
Instances data,
int[] missingValueCounts)
throws java.lang.Exception
attr - the attribute to branch ondata - the data to be used for creating the rulemissingValueCounts - to be filled in
java.lang.Exception - if the rule can't be built successfully
public weka.classifiers.rules.OneR.OneRRule newNumericRule(Attribute attr,
Instances data,
int[] missingValueCounts)
throws java.lang.Exception
attr - the attribute to branch ondata - the data to be used for creating the rulemissingValueCounts - to be filled in
java.lang.Exception - if the rule can't be built successfullypublic java.util.Enumeration listOptions()
listOptions in interface OptionHandlerlistOptions in class Classifier
public void setOptions(java.lang.String[] options)
throws java.lang.Exception
-B num
Specify the minimum number of objects in a bucket (default: 6).
setOptions in interface OptionHandlersetOptions in class Classifieroptions - the list of options as an array of strings
java.lang.Exception - if an option is not supportedpublic java.lang.String[] getOptions()
getOptions in interface OptionHandlergetOptions in class Classifierpublic java.lang.String toString()
toString in class java.lang.Objectpublic java.lang.String minBucketSizeTipText()
public int getMinBucketSize()
public void setMinBucketSize(int v)
v - Value to assign to minBucketSize.public static void main(java.lang.String[] argv)
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