/* x3_4.sas */
/* Purpose:  */

title1 'Example 3.4.';

data a;
  input y a b;
  cards;
13.4 1 0
12.3 1 0
 9.3 0 1
 8.7 0 1
;

proc print data=a;
title2 'List of data.';

proc glm data=a;
  model y=a b /noint solution xpx inverse e;
title2 'Analysis by GLM.';

proc glm data=a;
  model y=a b /solution xpx inverse e;
title2 'Alternative analysis by GLM.';

proc means data=a;
var y;
by b a;
title2 'Respective means.';

run;