1. Title: Hepatitis Domain

2. Sources:
     (a) unknown
     (b) Donor: G.Gong  (Carnegie-Mellon University) via 
                   Bojan Cestnik
                   Jozef Stefan Institute
                   Jamova 39
                   61000 Ljubljana
                   Yugoslavia (tel.: (38)(+61) 214-399 ext.287) }
     (c) Date: November, 1988

3. Past Usage:
    1. Diaconis,P. & Efron,B. (1983).  Computer-Intensive Methods in 
       Statistics.  Scientific American, Volume 248.
       -- Gail Gong reported a 80% classfication accuracy
    2. Cestnik,G., Konenenko,I, & Bratko,I. (1987). Assistant-86: A
       Knowledge-Elicitation Tool for Sophisticated Users.  In I.Bratko
       & N.Lavrac (Eds.) Progress in Machine Learning, 31-45, Sigma Press.
       -- Assistant-86: 83% accuracy

4. Relevant Information:
    Please ask Gail Gong for further information on this database.

5. Number of Instances: 155

6. Number of Attributes: 20 (including the class attribute)

7. Attribute information: 
     1. Class: DIE, LIVE
     2. AGE: 10, 20, 30, 40, 50, 60, 70, 80
     3. SEX: male, female
     4. STEROID: no, yes
     5. ANTIVIRALS: no, yes
     6. FATIGUE: no, yes
     7. MALAISE: no, yes
     8. ANOREXIA: no, yes
     9. LIVER BIG: no, yes
    10. LIVER FIRM: no, yes
    11. SPLEEN PALPABLE: no, yes
    12. SPIDERS: no, yes
    13. ASCITES: no, yes
    14. VARICES: no, yes
    15. BILIRUBIN: 0.39, 0.80, 1.20, 2.00, 3.00, 4.00
    16. ALK PHOSPHATE: 33, 80, 120, 160, 200, 250
    17. SGOT: 13, 100, 200, 300, 400, 500, 
    18. ALBUMIN: 2.1, 3.0, 3.8, 4.5, 5.0, 6.0
    19. PROTIME: 10, 20, 30, 40, 50, 60, 70, 80, 90
    20. HISTOLOGY: no, yes

8. Missing Attribute Values: (indicated by "?")
     Attribute Number:    Number of Missing Values:
                    1:    0
                    2:    0
                    3:    0
                    4:    1
                    5:    0
                    6:    1
                    7:    1
                    8:    1
                    9:    10
		   10:    11
		   11:    5
		   12:    5
		   13:    5
		   14:    5
		   15:    6
		   16:    29
		   17:    4
		   18:    16
		   19:    67
		   20:    0

9. Class Distribution:
     DIE: 32
    LIVE: 123