楼主,这道题应该是无序多分类logistic 的分析结果。程序如下:data a;
do x1= 0 to 1;
do x2= 0 to 1;
do y= 1 to 3;
input n @@; output;
end;
end;
end;
cards;
20 35 26
10 27 57
42 17 26
16 12 26
;
run;
proc sort data=a;
by y;
;
proc logistic data=a;
freq n;
model y(ref='3')= x1 x2/ link=glogit;
run;
这是运行结果,书上应该市为了好看将一个表拆成了两个表: