如何过滤SAS中的列

Question

假设您有一个数据集,如下所示:

FSA1 SSA1 SBW1
1     2    3

在数据步骤中是否有一种方法可以过滤不包含"SA"的列？我不想使用drop或keep语句,因为真实数据集有数百个变量.

Answer 1

像这样的东西:

proc sql;
   select name into: dropnames
   separated by " "
   from dictionary.columns 
   where libname='SASHELP' and memname='CLASS' 
   having name contains 'He';
   quit;

   data class;
   set sashelp.class;
   drop &dropnames;
   run;