求助一个input中@的问题，读the little SAS book时遇到的

是 否 +2 论坛币

k人 参与回答

经管之家送您一份

应届毕业生专属福利!

求职就业群

赵安豆老师微信：zhaoandou666

经管之家联合CDA

送您一个全额奖学金名额~ !

立即领取

感谢您参与论坛问题回答

经管之家送您两个论坛币！

+2 论坛币

The trailing @ holds a line of data for subsequent INPUT statements, but releases that line of data when SAS returns to the top of the DATA step to begin building the next observation. The double trailing @ holds a line of data for subsequent INPUT statements even when SAS starts building a new observation. In both cases, the line of data is released if SAS reaches a subsequent INPUT statement that does not contain a line-hold specifier.

这段话什么意思啊，@和@@的区别这里看不懂，求助大牛帮忙中文解释下，多谢多谢

扫码加我 拉你入群

请注明：姓名-公司-职位

以便审核进群资格，未注明则拒绝

分享0 收藏0 回帖

关键词：little Input Book ITT put statements subsequent building released releases

没有人帮忙回一下吗？本人是SAS初学者，我想这个问题对于各位大牛来讲应该不算太难

I suggest that you write a program yourself with trailing @ or @@ and run them with and without it. Then see the difference. You may modify you SAS with what is said in document and see what is going on.

I learn SAS in this way. I think it is very effective. Good Luck.