means1.sas

SAS for Windows统计分析系统教程,里面有源码

options nodate nonumber;
data means1;
  input age sex height weight chest@@;
cards;
7 1 107.2 16.4 55.2 7 1 114.3 16.9 56.0
7 1 118.0 17.2 55.5 7 2 117.2 20.0 56.2
7 2 118.5 20.5 56.2 7 2 114.6 18.3 56.5
8 1 113.1 18.1 55.5 8 1 122.5 21.6 57.7
8 1 116.2 19.5 48.7 8 2 120.6 19.8 55.0
8 2 116.5 21.3 48.3 8 2 125.4 23.4 58.8
9 1 125.5 24.0 60.7 9 1 123.9 21.8 59.2
9 2 130.6 28.2 63.0 9 2 131.2 29.1 60.1
;
proc means;
  class age sex;
  var  height weight chest;
  by age sex;
run;