* 对变量HEIRAT列频数表. 
Frequency  HEIRAT.
* 将变量HEIRATSJAHR重编码为四组,产生新变量group . 
RECODE
  HEIRATSJAHR
  (1925 thru 1940=1)  (1941 thru 1960=2)  (1961 thru 1980=3)  (1981 thru 1998=4)  INTO  group .
EXECUTE .
* 给变量group加标签 . 
variable label  group '结婚年份分组'. 
* 设有性别变量gender,其值1代表女,2代表男,临时选定女性为统计对象. 
USE ALL.
COMPUTE filter_$=(gender = 1).
FILTER BY filter_$.
EXECUTE .
* 取消临时选定. 
USE ALL.