LESS IS BETTER
tear_rate=reduced: none (100.00%)
tear_rate=normal
|    prescription=hypermetrope
|    |    astigmatic=no: soft (100.00%)
|    |    astigmatic=yes
|    |    |    age=pre-presbyopic: none (100.00%)
|    |    |    age=presbyopic: none (100.00%)
|    |    |    age=young: hard (100.00%)
|    prescription=myope
|    |    astigmatic=yes: hard (100.00%)
|    |    astigmatic=no
|    |    |    age=pre-presbyopic: soft (100.00%)
|    |    |    age=presbyopic: none (100.00%)
|    |    |    age=young: soft (100.00%)



MORE IS BETTER
age=pre-presbyopic
|    tear_rate=reduced: none (100.00%)
|    tear_rate=normal
|    |    prescription=hypermetrope
|    |    |    astigmatic=no: soft (100.00%)
|    |    |    astigmatic=yes: none (100.00%)
|    |    prescription=myope
|    |    |    astigmatic=no: soft (100.00%)
|    |    |    astigmatic=yes: hard (100.00%)
age=presbyopic
|    tear_rate=reduced: none (100.00%)
|    tear_rate=normal
|    |    prescription=hypermetrope
|    |    |    astigmatic=no: soft (100.00%)
|    |    |    astigmatic=yes: none (100.00%)
|    |    prescription=myope
|    |    |    astigmatic=no: none (100.00%)
|    |    |    astigmatic=yes: hard (100.00%)
age=young
|    tear_rate=reduced: none (100.00%)
|    tear_rate=normal
|    |    prescription=hypermetrope
|    |    |    astigmatic=no: soft (100.00%)
|    |    |    astigmatic=yes: hard (100.00%)
|    |    prescription=myope
|    |    |    astigmatic=no: soft (100.00%)
|    |    |    astigmatic=yes: hard (100.00%)



FUNCTION (more is better)
age=pre-presbyopic
|    tear_rate=reduced: none (100.00%)
|    tear_rate=normal
|    |    prescription=hypermetrope
|    |    |    astigmatic=no: soft (100.00%)
|    |    |    astigmatic=yes: none (100.00%)
|    |    prescription=myope
|    |    |    astigmatic=no: soft (100.00%)
|    |    |    astigmatic=yes: hard (100.00%)
age=presbyopic
|    tear_rate=reduced: none (100.00%)
|    tear_rate=normal
|    |    prescription=hypermetrope
|    |    |    astigmatic=no: soft (100.00%)
|    |    |    astigmatic=yes: none (100.00%)
|    |    prescription=myope
|    |    |    astigmatic=no: none (100.00%)
|    |    |    astigmatic=yes: hard (100.00%)
age=young
|    tear_rate=reduced: none (100.00%)
|    tear_rate=normal
|    |    prescription=hypermetrope
|    |    |    astigmatic=no: soft (100.00%)
|    |    |    astigmatic=yes: hard (100.00%)
|    |    prescription=myope
|    |    |    astigmatic=no: soft (100.00%)
|    |    |    astigmatic=yes: hard (100.00%)



Random test based on the number of examples
astigmatic=no
|    tear_rate=reduced: none (100.00%)
|    tear_rate=normal
|    |    prescription=hypermetrope: soft (100.00%)
|    |    prescription=myope
|    |    |    age=pre-presbyopic: soft (100.00%)
|    |    |    age=presbyopic: none (100.00%)
|    |    |    age=young: soft (100.00%)
astigmatic=yes
|    tear_rate=reduced: none (100.00%)
|    tear_rate=normal
|    |    prescription=myope: hard (100.00%)
|    |    prescription=hypermetrope
|    |    |    age=pre-presbyopic: none (100.00%)
|    |    |    age=presbyopic: none (100.00%)
|    |    |    age=young: hard (100.00%)

