This paper discusses a number of ways to rename variables. Its topics include the RENAME statement used in DATA steps, the RENAME= data set option, the AS keyword for PROC SQL, using macros, and using the DATA _
data mydata_renamed; set mydata; rename old_var=new_var; run; 3. 使用RENAME选项 在DATA步骤中,还可以使用RENAME选项来同时更改变量名。这种方法在处理多个变量时特别有用。语法如下: sas data new_dataset_name (rename=(old_variable_name1=new_variable_name1 old_variable_name2=new_variable_name2 ...
One of the variable names from results output has a parenthesis, i.e., ID(group). How can I rename the variable? Rename does not work. I needed to transpose from long to wide the results output but when I wanted to rename id(group) it does not work. This is what the output looks...
你可以使用GUI文件管理器或命令行终端重命名文件。 在本教程中，我们将向你展示如何使用mv和rename命令重...
DROP=variable-list 告诉SAS丢弃哪个变量 RENAME=(oldvar=newvar) 重命名某个变量 FIRSTOBS=n 从观测值n开始读取变量 OBS=n 到观测值n停止读取 IN=new-var-name 猜一猜,这个是干什么的? 选择并重命名变量下面是关于KEEP=,DROP=,和RENAME=的数据集选项的例子: ...
rename加索引的变量,将会把索引删除; (63.5) 2、经验法则判断PROC SORT所需的空间是数据集规模的2倍; (63.7) 3、 Which of the following is true of the WORK.ERRORS data set? B. The data set is created when the view TEMP is used in another SAS step. ...
@pointvariable 把指针移到指针变量所指的列。如: A=15; INPUT @A AGE 2.; @(expression) 把指针移到表达式值所指的列。如: A=5; INPUT @(A*3) AGE 2.; @'characterstring' 把指针移到数据行中字符串charaterstring之后的第一个非空格列。 @charactervariable 首先...
NOTFIRST Function Searches a character string for an invalid first character in a SAS variable name under VALIDVARNAME=V7, and returns the first position at which that character is found. NOTGRAPH Function Searches a character string for a non-graphical character, and returns the first position ...
SAS 数据集可以看作由若干行和列组成的表格,数据集的每一行称为一个观测(Observation),每一列称为一个变量(Variable),变量可以取不同的类型值,如整数型、浮点值、时间值、字符串、货币值等。 如图1-3所示的数据集范例中包括了3条观测,代表了3个客户的情况;包含5个变量,分别为客户编号(ID)、姓名(name)、持...
This paper illustrates step by step how to rename and modify attributes of variables using SAS(R) 9.1. The main objectives are: 1) renaming variables; 2) modifying the attribute of variables (i.e. length, format and label); 3) assuming attribute of a variable in specific dataset and ...