SAS我完全按书上写的怎么不出结果！！！！！！

data shu2;
input x $ y numcell;
cards;
A 1 52 B 1 60 C 1 50
A 2 64 B 2 59 C 2 65
A 3 24 B 3 52 C 3 74

;

proc freq data =shu2;
weight numcell;
tables x*y/chisq expected nopercent nocol norow;
run;

proc freq data =shu2;

tables x*y/chisq expected nopercent nocol norow;

weight numcell;

run; 注：试试weight numcell;在

tables x*y/chisq expected nopercent nocol norow;之前，调试。