NOTE: The data set WORK.new_1 has 2 observations and 3 variables. I am not able to understand why SAS did not give output for Jose and John. Thank you.0 Likes 1 ACCEPTED SOLUTION Shmuel Garnet | Level 18 Re: INPUT statement inside IF statement in SAS Data step Posted 12-12-2...
将数据集SASHELP.workers第10到15条观测中满足条件"ELECTRIC>260"的观测提取出来,生成新的数据集tmp。 代码1: data tmp; set SASHELP.workers(firstobs=10 obs=15); if ELECTRIC > 260; run; proc print data = tmp; title 'IF Statement'; run; 运行结果(4条记录): 代码2: data tmp; set SASHELP.w...
在SAS中,可以使用IF语句来设置等于0或1的变量。IF语句是一种条件语句,根据条件的真假来执行不同的操作。 在SAS中,IF语句的基本语法如下: ``` IF condition THEN do;...
Mike K Smith
(subsetting IF statement) 语法:IF expression; 例: IF Sex = ' f ' ; IF expression; 这样的看起来有点怪,但是正确的. 表明: 当expression 是TRUE时, SAS继续执行 DATA step。 如果expression 是 FALSE, 对当前observation不继续执行下面的语句,且,该observation不加入到新生成的dataset中。 SAS...
IF ID LE 100 =>This would tell SAS to retain only those IDs whose values are less than or equal to 100. In other words, you are removing IDs whose values are greater than or equal to 100. This can also be done using the IF-THEN DELETE statement. ...
1.2:if可以从input的数据和sas数据集的数据中进行筛选,where只能筛选sas数据集的数据 if可以if语句的条件条件选择子句,where不能 where比if高效 where中能用contains的地方一律考虑用like if语句<可执行语句> IFstatement tells SASwhich observations to include, theDELETEstatement tells SASwhich observations to exclu...
sas条 件判断语句 where,if的 区别,以及 where选 项 1:where和If最本质的区别,以及一些小的区别 1.1:The WHERE statement examines what is in the input page buffer and selects observations before they are loaded in the program data vector, which results in a savings in CPU operations(Where从...
select 里包含 if statement if语句和where语句是SAS中最常用的逻辑判断语句,主要用于数据筛选和条件赋值。当进行多分支的条件判断时,可以使用if...else语句来实现。如下: if .<AGE<18 then AGEGR1N=1; else if 18<=AGE<=40 then AGEGR1N=2; else if 41<=AGE<=64 then AGEGR1N=3;...
setSASHELP.workers(firstobs=10obs=15); whereELECTRIC>260; run; procprintdata= tmp; title'WHEREStatement'; run; 运行结果(6条记录): 上述两种方法为什么输出结果不一样?请注意IF语句和WHERE语句的区别: (1)IF语句是面向“程序数据向量”(ProgramDataVector)的,对当前PDV中的数据进行判断,满足条件时将其写入...