摘要: proc sql noprint; create table 数据集名 as select "题头" as labe,count(distinct usubjid) as num,行号 as line from 源数据集(where=(条件));quit; 阅读全文
posted @ 2023-04-28 14:25 Rachellaw 阅读(27) 评论(0) 推荐(0)