在reg中能指定输出的选项好像如下：COOKD, COVRATIO, DFFITS, H, L95, L95M, LCL, LCLM, OUT, P, PRED, PREDICTED, PRESS, R,
              RESIDUAL, RSTUDENT, STDI, STDP, STDR, STUDENT, U95, U95M, UCL, UCLM

如果想直接输出回归系数，不太方便用编程搓一把吧！

data a1;
input x y@@;
xy=x*y;x2=x**2;
cards;
13 3.54 11 3.01 9 3.09 6 2.48 8 2.56 10 3.36 12 3.18 7 2.65
;
proc means noprint;var x y xy x2; output out=a0 sum=sumx sumy sumxy sumx2 n=n;
data a; set a0;b=(sumxy-sumx*sumy/n)/(sumx2-sumx**2/n);proc print data=a;var b;
title '安徽省五河县临北乡石家村卫生室学习数据-指定输出回归系数的作业';run;