Example E8
SAS Program
data rats;
input level source @;
do i=1 to 10;
input wt @;
output;
end;
datalines;
1 1 73 102 118 104 81 107 100 87 117 111
1 2 98 74 56 111 95 88 82 77 86 92
1 3 94 79 96 98 102 102 108 91 120 105
2 1 90 76 90 64 86 51 72 90 95 78
2 2 107 95 97 80 98 74 74 67 89 58
2 3 49 82 73 86 81 97 106 70 61 82
;
run;
proc glm ;
class level source;
model wt = level source level*source;
contrast 'animal vs. vegetable'
source 1 -2 1;
contrast 'beef vs. pork'
source 1 0 -1;
contrast 'an. vs. veg. x level '
level*source 1 -2 1 -1 2 -1;
contrast 'an. vs. veg. x level'
level*source 1 0 -1 -1 0 1;
lsmeans level*source/slice=level;
lsmeans level*source/cl pdiff adjust=tukey;
run;
