What is SAS macro?
The SAS macro language is a very versatile and useful tool. It is often used to reduce the amount of regular SAS code and it facilitates passing information from one procedure to another procedure. Furthermore, we can use it to write SAS programs that are “dynamic” and flexible.
How do I create a macro in SAS?
Knowing how to create and use macro variables is the first step in learning the SAS Macro Language. One of the primary techniques is through the %LET statement. Other ways of creating macro variables includes the use of the iterative %DO loop, macro parameters, the SQL INTO: clause, and the DATA step SYMPUT routine.
Why do we use SAS macro?
SAS has a powerful programming feature called Macros which allows us to avoid repetitive sections of code and to use them again and again when needed. It also helps create dynamic variables within the code that can take different values for different run instances of the same code.
How do SAS macros work?
Macros allow you to execute a set of SAS statements with just one statement, and while this alone can be helpful, macros are even more powerful when you add parameters to them. Parameters are macro variables whose values are set when you invoke the macro. Parameters give your macros flexibility.
What are macro variables?
Macro variables are tools that enable you to dynamically modify the text in a SAS program through symbolic substitution. You can assign large or small amounts of text to macro variables, and after that, you can use that text by simply referencing the variable that contains it.
How do I read a macro in SAS?
Macro variables are referenced by using ampersand (&) followed by macro variable name. We can also declare multiple macro variables and use them at different places in SAS Code. Macro variable are not resolved when they are accessed within single quotes. Hence, we should use double quotes to reference them.
What are the five macro variables?
There are 5 common terms in macroeconomics that are considered in aggregate: output, gross domestic product ( GDP ), production, income, and expenditures.
How do I download a macro in SAS?
If you have SAS Enterprise Guide projects that use any of these macros, you can define the macros in SAS Studio by downloading the appropriate . SAS file and including and executing the code in SAS Studio. To download the macro code, click the appropriate link in the Request Download column.
What are the types of macros?
There are two types of macros:
- Object-like Macros.
- Function-like Macros.
How to create and use SAS macro functions?
data warehouse. SAS/MACRO can then be used to encapsulate these programs (or processes) and by substituting macro variables into key parts of the program (such as a dataset name) and setting the macro call signature to accept parameters, the program can be made more generic. This enables the programmer to change the function of the program to suit his or her own requirements via the macro call. In creating our functions we will use this advantage to allow the user
How to use a SAS macro video?
SAS has a powerful programming feature called Macros which allows us to avoid repetitive sections of code and to use them again and again when needed. It also helps create dynamic variables within the code that can take different values for different run instances of the same code.
What is macro variable in SAS?
Start the DATA statement Normally,you use the DATA statement to create a SAS Dataset.
What is SAS macro programming?
THE MACRO PROCESSOR. You can refer to page 339 of our textbook for an example of a program that SAS would need to pre-process before executing the code.