Flexible Code the Easy Way: SAS® Macro VariablesExpert programmers use existing code and modify it rather than programming from scratch. You can use macro variables to facilitate writing code that is flexible and easy to re-use.Mel Widawski...
SAS - Macro(一)Overview SAS Macro 由两部分组成:Macro variables and Macro. 宏变量是以字符存储的。 Macro variable : 命名规范:需要遵循 SAS 变量命名规范(不超过32 characters, 以下划线或字母开始,只包含数字、字母或下划线)。Macro variable value 长度不超过64000 characters. Local & Global : Local macro...
The SAS_EXECFILEPATH and SAS_EXECFILENAME environment variables are useful when they are used to obtain the filename and full path of submitted programs or catalog entries. 环境变量不是宏变量 SAS_EXECFILEPATH:本执行文件的路径 %let a=%sysget(SAS_EXECFILEPATH); %put User is &a.; 7.%bquote...
Be careful.You cannot create a macro variable with CALL SYMPUT and use it in the same DATA step.Here’s why. When you submit macro code, it isresolvedby the macro processor, and thencompiledandexecuted.Not until the final stage— execution—does SAS see your data.CALL SYMPUT takes a data...
When the autocomplete option is enabled, SAS Enterprise Guide might unexpectedly stop working when you enter the dot (.) for a macro variable in your code. For example, the problem might occur when you enter &macvar. as shown in the following sam
以甲基丙烯酸(MAA)和4种不同侧链长度的甲氧基聚乙二醇(MPEG相对分子质量分别为350,500,750,1000)先聚合得到酯化大单体(MPEGMAA),再以甲基丙烯酸,烯丙基磺酸钠(SAS)为单体,在引发剂过硫酸钾,阻聚剂对苯二酚作用下聚合得到4种具有不同侧链长度的聚羧酸盐分散剂.通过红外(FT-IR),核磁共振氢谱(1HNMR)和凝胶渗透...
You might not be aware of these features and you might find them useful. There are several new macrofunctions, several new automatic macro variables, and enhancements to the %PUT, %GLOBAL, and %LOCAL statements, all described herein.Richard D. LangstonSAS Institute Inc...
How to Use SAS - Special Topic - Macro Coding and Macro Variables.mp42056 播放善变的王哥 减肥不过是说出来,吓唬吓唬这一身肉罢了。 收藏 下载 分享 手机看 登录后可发评论 评论沙发是我的～选集(14) 自动播放 [1] How to Use SAS - ... 2.4万播放 05:33 [2] How to Use SAS - ....
sas宏(1)、系统宏变量、自定义宏变量、输出宏变量值、宏与text结合 摘要:SAS macro variables 1. enable you to substitute text in your SAS programs(替代作用,和c++的 #define 差不多) 2. When you reference a macro variable in a SAS pr...阅读全文 ...
再看一个例子,假定我们需要定义一个宏用来in-place(关于in-place的好处,参见漫谈SAS Macro (1))返回输入的SAS dataset的label: %macro getDsetLabel(data); %local dsid; %local label; %local rc; %let dsid = %sysfunc(open(&data)); %let label = %nrbquote(%sysfunc(attrc(&dsid, label))); ...