/* Lesson 6-1 */
 /*    File Name = les0604.sas   06/10/99   */

options linesize=72 pagesize=20;

data gakusei;
  infile 'taikaku99.dat';
  input seibetsu $ shintyou taijyuu kyoui;

proc print data=gakusei(obs=10);
run;
proc means data=gakusei;
   var shintyou taijyuu;
run;
proc sort data=gakusei;
   by seibetsu;
run;
proc means data=gakusei;
   var shintyou taijyuu;
   by seibetsu;
run;