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InfoGainAttributeEval :

Evaluates the worth of an attribute by measuring the information gain with respect to the class.

InfoGain(Class,Attribute) = H(Class) - H(Class | Attribute).


The table below describes the options available for InfoGainAttributeEval.

Option Description
binarizeNumericAttributes Just binarize numeric attributes instead of properly discretizing them.
missingMerge Distribute counts for missing values. Counts are distributed across other values in proportion to their frequency. Otherwise, missing is treated as a separate value.


The table below describes the capabilites of InfoGainAttributeEval.

Capability Supported
Class Binary class, Nominal class, Missing class values
Attributes Nominal attributes, Missing values, Numeric attributes, Unary attributes, Date attributes, Empty nominal attributes, Binary attributes
Min # of instances 1

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