DATA weight;
input last before site$@@;
cards;
32.6 27.2 R 35.2 28.6 C 24.6 20.4 F
36.6 32 R 29.1 22.4 C 23.4 19.6 F
37.7 33 R 28.9 23.2 C 30.3 25.1 F
31.0 26.8 R 30.2 24.4 C 21.8 18.1 F
run;
data weight;
set weight;
d1=(site="C");
d2=(site="F");
bes=d1*before;
bef=d2*before;
run;
proc reg data=weight;
model last= before d1 d2 bes bef;
all: test d1=d2=bes=bef=0;
intercept: test d1=d2=0;
slope: test bes=bef=0;
run;
程序编的有错吗 为什么运行不了