contact-lenses.arff
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- % 1. Title: Database for fitting contact lenses
- %
- % 2. Sources:
- % (a) Cendrowska, J. "PRISM: An algorithm for inducing modular rules",
- % International Journal of Man-Machine Studies, 1987, 27, 349-370
- % (b) Donor: Benoit Julien (Julien@ce.cmu.edu)
- % (c) Date: 1 August 1990
- %
- % 3. Past Usage:
- % 1. See above.
- % 2. Witten, I. H. & MacDonald, B. A. (1988). Using concept
- % learning for knowledge acquisition. International Journal of
- % Man-Machine Studies, 27, (pp. 349-370).
- %
- % Notes: This database is complete (all possible combinations of
- % attribute-value pairs are represented).
- %
- % Each instance is complete and correct.
- %
- % 9 rules cover the training set.
- %
- % 4. Relevant Information Paragraph:
- % The examples are complete and noise free.
- % The examples highly simplified the problem. The attributes do not
- % fully describe all the factors affecting the decision as to which type,
- % if any, to fit.
- %
- % 5. Number of Instances: 24
- %
- % 6. Number of Attributes: 4 (all nominal)
- %
- % 7. Attribute Information:
- % -- 3 Classes
- % 1 : the patient should be fitted with hard contact lenses,
- % 2 : the patient should be fitted with soft contact lenses,
- % 1 : the patient should not be fitted with contact lenses.
- %
- % 1. age of the patient: (1) young, (2) pre-presbyopic, (3) presbyopic
- % 2. spectacle prescription: (1) myope, (2) hypermetrope
- % 3. astigmatic: (1) no, (2) yes
- % 4. tear production rate: (1) reduced, (2) normal
- %
- % 8. Number of Missing Attribute Values: 0
- %
- % 9. Class Distribution:
- % 1. hard contact lenses: 4
- % 2. soft contact lenses: 5
- % 3. no contact lenses: 15
- @relation contact-lenses
- @attribute age {young, pre-presbyopic, presbyopic}
- @attribute spectacle-prescrip {myope, hypermetrope}
- @attribute astigmatism {no, yes}
- @attribute tear-prod-rate {reduced, normal}
- @attribute contact-lenses {soft, hard, none}
- @data
- %
- % 24 instances
- %
- young,myope,no,reduced,none
- young,myope,no,normal,soft
- young,myope,yes,reduced,none
- young,myope,yes,normal,hard
- young,hypermetrope,no,reduced,none
- young,hypermetrope,no,normal,soft
- young,hypermetrope,yes,reduced,none
- young,hypermetrope,yes,normal,hard
- pre-presbyopic,myope,no,reduced,none
- pre-presbyopic,myope,no,normal,soft
- pre-presbyopic,myope,yes,reduced,none
- pre-presbyopic,myope,yes,normal,hard
- pre-presbyopic,hypermetrope,no,reduced,none
- pre-presbyopic,hypermetrope,no,normal,soft
- pre-presbyopic,hypermetrope,yes,reduced,none
- pre-presbyopic,hypermetrope,yes,normal,none
- presbyopic,myope,no,reduced,none
- presbyopic,myope,no,normal,none
- presbyopic,myope,yes,reduced,none
- presbyopic,myope,yes,normal,hard
- presbyopic,hypermetrope,no,reduced,none
- presbyopic,hypermetrope,no,normal,soft
- presbyopic,hypermetrope,yes,reduced,none
- presbyopic,hypermetrope,yes,normal,none