areg2.sas

SAS for Windows统计分析系统教程,里面有源码

data areg2;
  y=20091;
  input x1 x2 x3;
  y1=-31788+56.167642*x1+0.032486*x2+0.187941*x3;
  y2=-13402+31.837425*x1+0.569044*x2+0.293241*x3;
  s1=(abs(y-y1)/y1)*100;/* Relative error(1) */
  s2=(abs(y-y2)/y2)*100;/* Relative error(2) */
cards;
869.96 2590.86 14318
proc print;
run;