public class GainRatioAttributeEval extends ASEvaluation implements AttributeEvaluator, OptionHandler
-M treat missing values as a separate value.
Discretize
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Serialized FormConstructor and Description |
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GainRatioAttributeEval()
Constructor
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Modifier and Type | Method and Description |
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void |
buildEvaluator(Instances data)
Initializes a gain ratio attribute evaluator.
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double |
evaluateAttribute(int attribute)
evaluates an individual attribute by measuring the gain ratio of the class
given the attribute.
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Capabilities |
getCapabilities()
Returns the capabilities of this evaluator.
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boolean |
getMissingMerge()
get whether missing values are being distributed or not
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java.lang.String[] |
getOptions()
Gets the current settings of WrapperSubsetEval.
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java.lang.String |
getRevision()
Returns the revision string.
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java.lang.String |
globalInfo()
Returns a string describing this attribute evaluator
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java.util.Enumeration<Option> |
listOptions()
Returns an enumeration describing the available options.
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static void |
main(java.lang.String[] args)
Main method.
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java.lang.String |
missingMergeTipText()
Returns the tip text for this property
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int[] |
postProcess(int[] attributeSet)
Provides a chance for a attribute evaluator to do any special post
processing of the selected attribute set.
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void |
setMissingMerge(boolean b)
distribute the counts for missing values across observed values
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void |
setOptions(java.lang.String[] options)
Parses a given list of options.
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java.lang.String |
toString()
Return a description of the evaluator
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clean, doNotCheckCapabilitiesTipText, forName, getDoNotCheckCapabilities, makeCopies, postExecution, preExecution, run, runEvaluator, setDoNotCheckCapabilities
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
makeCopy
public java.lang.String globalInfo()
public java.util.Enumeration<Option> listOptions()
listOptions
in interface OptionHandler
listOptions
in class ASEvaluation
public void setOptions(java.lang.String[] options) throws java.lang.Exception
-M treat missing values as a separate value.
setOptions
in interface OptionHandler
setOptions
in class ASEvaluation
options
- the list of options as an array of stringsjava.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
getOptions
in class ASEvaluation
public Capabilities getCapabilities()
getCapabilities
in interface CapabilitiesHandler
getCapabilities
in class ASEvaluation
Capabilities
public void buildEvaluator(Instances data) throws java.lang.Exception
buildEvaluator
in class ASEvaluation
data
- set of instances serving as training datajava.lang.Exception
- if the evaluator has not been generated successfullypublic double evaluateAttribute(int attribute) throws java.lang.Exception
evaluateAttribute
in interface AttributeEvaluator
attribute
- the index of the attribute to be evaluatedjava.lang.Exception
- if the attribute could not be evaluatedpublic java.lang.String toString()
toString
in class java.lang.Object
public java.lang.String getRevision()
getRevision
in interface RevisionHandler
getRevision
in class ASEvaluation
public int[] postProcess(int[] attributeSet)
ASEvaluation
postProcess
in class ASEvaluation
attributeSet
- the set of attributes found by the searchpublic static void main(java.lang.String[] args)
args
- the options -t training file