options nocenter ps=50 ls=80;

data new;
input oper filter clutter resp;
cards;
1 1 1 90
1 1 2 102
1 1 3 114
1 2 1 86
1 2 2 87
1 2 3 93
2 1 1 96
2 1 2 106
2 1 3 112
2 2 1 84
2 2 2 90
2 2 3 91
3 1 1 100
3 1 2 105
3 1 3 108
3 2 1 92
3 2 2 97
3 2 3 95
4 1 1 92
4 1 2 96
4 1 3 98
4 2 1 81
4 2 2 80
4 2 3 83
;

proc glm;
class oper filter clutter;
model resp = oper filter|clutter;