proc genmod data=dd;

class f;

make 'obstats' out=outdata;

model d=f/dist=poisson link=log offset=lgn

type1 type3  obstats;

run;

proc print data=outdata;

run;

data k; set outdata;

set dd;

rate=exp(xbeta);run;proc print;

run;

大神 解释下这程序干嘛呢