I can clearly see the InfoGainAttributeEval attribute evaluator for the weka data sets. But for a dataset i got externally InfoGainAttributeEval option is not activated.
Can someone explain to me why this must be happening. I want to rank my features.
When selected (in the scenario that you are able to select "InfoGainAttributeEval"), if you double click the white space containing the text "InfoGainAttributeEval", then select capabilities, the following is presented:
CAPABILITIES Class -- Missing class values, Nominal class, Binary class Attributes -- Empty nominal attributes, Nominal attributes, Numeric attributes, Unary attributes, Date attributes, Missing values, Binary attributes Additional min # of instances: 1
When "InfoGainAttribueEval" is unavailable, I suspect that your class is not Nominal or Binary, but rather numerical.