xfc3.sas

those are some program of the sas system .and very useful when doing the statistic working .

title'双因素试验不考虑交互作用';
data ex;do a=1 to 3;
do b=1 to 5;input x y @@;
output;end;end;
cards;
8 2.85 10 4.24 12 3 11 4.94 10 2.88
10 3.14 12 4.5 7 2.75 12 5.84 10 4.06
12 3.88 10 3.86 9 2.82 10 4.94 9 2.89
;
proc glm;class a b;model y=x a b/solution;
lsmeans a b/stderr pdiff;run;