crsid1-crsid3 are assigned values of the data set variable Course_code from each of the first three rows,他们分别对应数据集的前三行的观测的值 如果规定的group数大于实际的数量,那么按照实际多少个来创建宏 createone macro variablethat willhold all values ofa certain data setvariable. procsql nopr...
SAS语言的基本单位是语句,每个SAS语句一般由一个关键字(如DATA,PROC,INPUT,CARDS,BY)开头,包含SAS名字、特殊字符、运算符等,以分号结束。 SAS关键字是用于SAS语句开头的特殊单词,SAS语句除了赋值、累加、注释、空语句以外都以关键字开头。SAS名字在SAS程序中标识各种SAS成分,如变量、数据集、数据库,等等。SAS名字由...
How can we create two macro variables through into option. Proc sql noprint outobs=1; select name into:bname, age into:bage from sashelp.class; quit; %put &bname &bage; Thanks... 0 Likes 1 ACCEPTED SOLUTION PGStats Opal | Level 21 Re: create two macro variables in proc ...
13.Create macro libraries to store common macro routines in one place. 在同一个地方建库,存放所有类似的宏文件。 14.Create permanent libraries containing information from daily,weekly,monthly,quarterly,and annual runs.The type of libraries consists of scripts...
⑤LENGHT=variable定义一个变量, 其值是当前输入数据行的长度。 ⑥OBS=n指定从一个顺序输入文件中读取数据的最后一个观测(即第1～第n个观测)。 3.INPUT语句(输入语句) 描述一个输入记录中数值的安排情竣给相应的SAS变量赋输入值,该语句只能用于读入存放于外部文件中的数据或...
使用mv命令重命名文件 mv命令（移动时间短）用于将文件从一个位置重命名或移动到另一个位置。mv命令的...
• Create the macro variablein aDATA step withCALL SYMPUTXwhen the global symbol table is specified. • Define a global macro variable with theINTO clauseon thePROC SQL SELECTstatement. Where and When they can be used? You can reference global macro variables throughout the SAS session in ...
A macro variable does not belong to a data set, and its value is always character. This value could be a variable name, a numeral, or any text that you want substituted into your program. (宏变量不属于数据集而变量都是属于数据集) 2.按定义方式可分为两类: 1).Automatic Macro Variables:...
SAS macro facility has been a very important tool in SAS programming for many years. The CALL SYMPUT routine and DATA _NULL_ are the traditional methods to create macro variables from SAS data. However, PROC SQL is much more powerful andefficient in creating macro variables thanks to the in...
= 0 %then %do; data result; length Dataset $50 empvar $2000; dataset = "CLASS"; empvar = "There is no variable in the dataset Class!"; run; %end; %else %if &nvar. > 0 %then %do; %if &nvar. = 1 %then %do; proc sql noprint; create table result1 as select "CLASS"...