1.%str在宏编译时,以常量文本掩盖特殊字符和助记符( / + − * < > = ¬ ^ ~ ; , # blank AND OR NOT EQ NE LE LT GE GT IN,引号、括号)。%str参数不用引号。 见代码 2.%eval在宏编译时,对括号内的值进行计算后再赋值。 3.%sysfunc在宏语句中执行SAS或用户自己定义的函数,语法如下: SYS...
New Macro Features Added in SAS® 9.3 and SAS® 9.4There are a number of new features that have been added to the macro facility during 9.3 and 9.4. You might not be aware of these features and you might find them useful. There are several new macrofunctions, several new automatic ...
How to Concatenate Values Learn how use the CAT functions in SAS to join values from multiple variables into a single value. Find more tutorials on the SAS Users YouTube channel.SAS Training: Just a Click Away Ready to level-up your skills? Choose your own adventure. Browse our catalog!
SAS Macro由于宏变量 (Macro Variable)的存在,功能有极大的扩展,但是无论如何你不能像函数(Function)一样使用一个return语句返回一个值。 最简单的解决方案(workaround)当然是通过宏变量传递值了。假设我们想定义一个宏,功能是传入一个dataset,然后求观测数(# of records/observations)。我们可以如下定义: %macro ...
The SAS macro function %SYSFUNC is very useful because it makes possible the use of SAS data step functions in the SAS macro environment. However, when the argument in the nested SAS data step function contains a macro variable or another macro such as %sysfunc(substr(&&AB&C,1)), it is...
1. As a macro function, youdo not need to enclose character values in quotation marksas you do in DATA step functions. One way in which macro language is different from SAS language isMacro-variable values are always text, quotation marks are not needed to indicate texr constants in the ma...
Other functions/macros 宏语言中有一些以”Q”开头的函数或宏也可以实现对其运算结果的quote。 如函数 %QSCAN, %SUBSTR, %QSYSFUNC, %QUPCASE, 以及宏%QCOMPRES, %QLEFT, %QLOWCASE, %QTRIM。 %UNQUOTE 这个函数的作用在于解除对特殊字符或运算符的隐藏,恢复其原有...
SAS macro High-Level Knowledge points 摘要:1. As a macro function, you do not need to enclose character values in quotation marks as you do in DATA step functions. One way in which macro langu... 阅读全文 posted @ 2015-08-19 09:38 暴走的豆浆 阅读(657) 评论(0) 推荐(0) 编辑 ...
This was a change from SAS V5.18. At macro compilation time, the SAS Macro Facility should have only been evaluating %STR and %NRSTR quoting functions used in the default value expressions of keyword parameters. The correct time for full resolution of default keyword parameter expressions is at...
Learn how use the CAT functions in SAS to join values from multiple variables into a single value. Find more tutorials on the SAS Users YouTube channel. SAS Training: Just a Click Away Ready to level-up your skills? Choose your own adventure. Browse our catalog! Related topics How ...