在Base SAS中,SAS statement(语句)要求SAS系统执行操作或给SAS系统提供信息,是包含关键词、SAS 名字、特殊字符和运算符等的语句。每个SAS语句以分号做结束。 DATA step statements 可用在SAS程序任何位置的Global statements 1.1 DATA步语句 DATA ...
IF-statement processing in DATA step Posted 05-14-2024 12:45 PM (2311 views) **ADDENDUM to original post: I realized that this issue was being caused by starting with a "RETAIN" statement, which I use to put the variables in the desired order. But I'd still like to leave this ...
In a DATA step, if the LOWCASE function returns a value to a variable that has not previously been assigned a length, then that variable is given the length of the argument. The LOWCASE function copies the character argument, converts all uppercase lett...
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除了data步和proc步,SAS还包含全局语句(In addition to DATA and PROC steps, a SAS program can also contain global statements. );全局语句后面不需要run(Global statements do not need a run statement after them.)例如:titles...; options...; libname... ...
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#n: moves the pointer to thenth line in the input buffer. 2:Line-Hold Specifiers @:prevent SAS from automatically reading a new data record intothe input bufferwhen a new input statement is executedwithin the same iteration of the DATA step.When used,the trailing @ must be the last item...
Order BYvariableASC;variableDESC绘制图表proc sql;Create Tabledata› An insert statement 3.Joining Tables Using PROC SQL inner join要用on natural join不能用on,自动识别相同的column name, 也是inner join的一种,只返回交集 outer join when only some of the values match ...
一、将数据录入SAS——DATA Step / Viewtable 1.Internal raw data- Datalines or Cards 命令; 2.External Raw data files- Infile 命令 + Input 命令; 二、将数据文件读入SAS ——DATA Step / PROC IMPORT 1.将SAS文件读入SAS—— data sasuser.saslin; ...
#n: moves the pointer to thenth line in the input buffer. 2:Line-Hold Specifiers @:prevent SAS from automatically reading a new data record intothe input bufferwhen a new input statement is executedwithin the same iteration of the DATA step.When used,the trailing @ must be the last item...