How do I reference a macro variable in SAS?

How do I reference a macro variable in SAS? After a macro variable is created, you typically use the variable by referencing it with an ampersand preceding its name (&variable-name), which is called a macro

How do I reference a macro variable in SAS?

After a macro variable is created, you typically use the variable by referencing it with an ampersand preceding its name (&variable-name), which is called a macro variable reference. These references perform symbolic substitutions when they resolve to their value. You can use these references anywhere in a SAS program.

What are SAS macro variables?

Macro variables are tools that enable you to dynamically modify the text in a SAS program through symbolic substitution. The value of a macro variable remains constant until it is specifically changed. Macro variables are independent of SAS data set variables.

How do you assign variable names in SAS?

So, how do you rename a variable in SAS? You rename a SAS variable with the RENAME option. The RENAME option is a data set option which enables you to change the name of a variable. First of all, you define the old variable name, then an equal sign, and finally the new variable name.

How is a macro variable referenced in SAS?

After a macro variable is created, you typically use the variable by referencing it with an ampersand preceding its name (& variable-name ), which is called a macro variable reference . These references perform symbolic substitutions when they resolve to their value.

When to use quotation marks in a SAS statement?

If you use an automatic macro variable in the title text, you must enclose the title text in double quotation marks. The SAS macro facility will resolve the macro variable only if the text is in double quotation marks. For more information about including quotation marks as part of the title, see Expressions in SAS Language Reference: Concepts.

How does the title statement in SAS work?

A TITLE statement for a given line cancels the previous TITLE statement for that line and for all lines with larger n numbers. Operating Environment Information: The maximum title length that is allowed depends on your operating environment and the value of the LINESIZE= system option.

How to assign a value to a macro variable?

Compare the following statements that assign a value to macro variable DSN and use it in a TITLE statement: In the first TITLE statement, the macro processor resolves the reference by replacing &DSN with the value of macro variable DSN. In the second TITLE statement, the value for DSN does not replace &DSN.