if-statement sas macros 我是SAS的初学者,我正在尝试使用宏来导入excel文件,使用条件循环。导入过程基于initial_year;final_year;initial_month和final_month值。但是如果条件不起作用的话。你能帮忙吗。非常感谢。 这是我的sas程序: %let path=\\xxxx.yy.pt\aaa$\INFO\; %let initial_year=2019; %let initi...
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;...
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 if语句<可执行语句> IFstatement tells SASwhich observations to include, theDELETEstatement tells SASwhich observations to exclude IF Sex = 'f'; IF Sex = 'm' ...
在DATA STEP 使用:构造子集 IF 语句.(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...
This can also be done using the IF-THEN DELETE statement. 2. IF-THEN DELETE IF Data readin; Input ID Q1-Q3; cards; 85 1 2 3 90 3 4 6 95 5 5 6 100 6 6 4 105 5 5 6 110 6 6 5 ; Data readin1; Set readin; IF ID GT 100 THEN DELETE; run; ...
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 if语句<可执⾏语句> IF statement tells SAS which observations to include, the DELETE statement tells SAS which observations to exclude IF Sex = 'f...
but it's generally not what I would want to do when applying conditional logic. I had thought that these sort of situations where SAS operateson one row depending on what was in the previous row only happen when there is a "BY" statement, but obviously that's incorrect as there is ...
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: AI检测代码解析 if .<AGE<18 then AGEGR1N=1; else if 18<=AGE<=40 then AGEGR1N=2;...
title'IF Statement'; run; 运行结果(4条记录): 代码2: datatmp; 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...
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