title 'Age & blood concentration of cholesterol in Iowa & Nebraska women';
data blood;
    input st 1 age 3-4 y 6-8 ;
    if st=1 then state='IA';
            else state='NE';
	agest = (age-45) * (st-1);
	label age='Age'
		y='Cholesterol'
		state='State'
		agest = 'Age x State';
cards ;
1 33 201
1 39 182
1 41 112
1 46 181
1 49 121
1 52 228
1 54 259
1 58 189
1 65 249
1 71 224
1 76 339
2 18 137
2 44 173
2 33 177
2 78 241
2 51 225
2 43 223
2 44 190
2 58 257
2 63 337
2 19 189
2 42 214
2 30 140
2 47 196
2 58 262
2 70 261
2 67 356
2 31 159
2 21 191
2 56 197
*Proc Print;