Information gain of 'astigmatic': 0.3770
Information gain of 'tear_rate': 0.5488
Information gain of the first attribute: 0.0394

*** A set of more exhaustive tests for different way of passing arguments to MeasureAttribute ***
                                          age   prescription     astigmatic      tear_rate
Computing information gain directly from examples
        - by attribute number:         0.0394         0.0395         0.3770         0.5488
          - by attribute name:         0.0394         0.0395         0.3770         0.5488
    - by attribute descriptor:         0.0394         0.0395         0.3770         0.5488

Computing information gain from DomainContingency
        - by attribute number:         0.0394         0.0395         0.3770         0.5488
          - by attribute name:         0.0394         0.0395         0.3770         0.5488
    - by attribute descriptor:         0.0394         0.0395         0.3770         0.5488

Computing information gain from DomainContingency
        - by attribute number:         0.0394         0.0395         0.3770         0.5488
          - by attribute name:         0.0394         0.0395         0.3770         0.5488
    - by attribute descriptor:         0.0394         0.0395         0.3770         0.5488

Information gain of Cartesian product of astigmatic and tear_rate: 0.9340
Information gain for a random meta attribute: 0.0273
