OPTIONS LS=75;



DATA a;

INFILE 'pbc.dat';

  INPUT ID      FU_DAYS      STATUS     DRUG        AGE
        SEX     ASCITES      HEPATOM    SPIDERS     EDEMA  
        BILI    CHOL         ALBUMIN    COPPER      ALK_PHOS
        SGOT    TRIG         PLATELET   PROTIME     STAGE ;
         
PROC MEANS;

RUN: