将多行组合成单行SAS

Question

我有以下数据集，我希望将变量'summary'转换并创建为变量

Date               serNo      source      summary      OrderNo
28SEP2017    101            CO            Number       123
28SEP2017    101            CO            City              Albany

输出数据集应该类似于

 Date               serNo      source      Number   City
 28SEP2017    101            CO           123      Albany

有人可以帮忙吗？

Answer 1

by Proc sql

 proc sql;
 select distinct date, serno, source, 
 max(case when summary = 'Number' then Orderno end) as Number,
 max(case when summary = 'City' then orderno end) as city
 from have
 group by date, serno, source;

或通过proc转置

 proc sort data=have ;
 by date serno source;
 run;

 proc transpose data=have out=want(drop = _name_);
 by  date serno source;
 id summary;
 var orderno;
 run;