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java.lang.Objectweka.attributeSelection.ASEvaluation
weka.attributeSelection.AttributeEvaluator
weka.attributeSelection.SymmetricalUncertAttributeEval
Class for Evaluating attributes individually by measuring symmetrical uncertainty with respect to the class. Valid options are:
-M
Treat missing values as a seperate value.
| Constructor Summary | |
SymmetricalUncertAttributeEval()
Constructor |
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| Method Summary | |
void |
buildEvaluator(Instances data)
Initializes a symmetrical uncertainty attribute evaluator. |
double |
evaluateAttribute(int attribute)
evaluates an individual attribute by measuring the symmetrical uncertainty between it and the class. |
boolean |
getMissingMerge()
get whether missing values are being distributed or not |
java.lang.String[] |
getOptions()
Gets the current settings of WrapperSubsetEval. |
java.lang.String |
globalInfo()
Returns a string describing this attribute evaluator |
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 |
missingMergeTipText()
Returns the tip text for this property |
void |
setMissingMerge(boolean b)
distribute the counts for missing values across observed values |
void |
setOptions(java.lang.String[] options)
Parses a given list of options. |
java.lang.String |
toString()
Return a description of the evaluator |
| Methods inherited from class weka.attributeSelection.ASEvaluation |
forName, makeCopies, postProcess |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
public SymmetricalUncertAttributeEval()
| Method Detail |
public java.lang.String globalInfo()
public java.util.Enumeration listOptions()
listOptions in interface OptionHandler
public void setOptions(java.lang.String[] options)
throws java.lang.Exception
setOptions in interface OptionHandleroptions - the list of options as an array of strings
java.lang.Exception - if an option is not supportedpublic java.lang.String missingMergeTipText()
public void setMissingMerge(boolean b)
b - true=distribute missing values.public boolean getMissingMerge()
public java.lang.String[] getOptions()
getOptions in interface OptionHandler
public void buildEvaluator(Instances data)
throws java.lang.Exception
buildEvaluator in class ASEvaluationdata - set of instances serving as training data
java.lang.Exception - if the evaluator has not been
generated successfully
public double evaluateAttribute(int attribute)
throws java.lang.Exception
evaluateAttribute in class AttributeEvaluatorattribute - the index of the attribute to be evaluated
java.lang.Exception - if the attribute could not be evaluatedpublic java.lang.String toString()
public static void main(java.lang.String[] argv)
argv - should contain the following arguments:
-t training file
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