Here is a simple example: %let city=New Orleans; The first character must begin with a letter or an underscore. These courses are part of our SAS Programming curriculum. Either way macro language and data step language mostly use the same operators, just that macro language doesn't use quotation marks. The simplest way to define a macro variable is to use the %LET statement to assign the macro variable a name (subject to standard SAS … In particular, %NRSTR is a good choice for masking strings that contain % and & signs. Also, %stamp means a macro call which has a definition and not a variable like you've mentioned in your questions.. similarly %timestamp= .. this is syntactically wrong in SAS.. %let timestamp= does macro variable creation and %timestamp would ideally call a timestamp named macro definition..I would suggest reading the SAS Macro Language Reference. Therefore, %STR and %NRSTR are useful for masking strings that are constants, such as sections of SAS code.

When a macro variable contains complete SAS statements, the statements are easier to read if you enter them on separate lines with indentions for statements within a DATA or PROC step. The issue lies in the difference between %put and put.. Do you want to see the contents of the macro variable &var?Then use %put(&var)..

The macro variable needs to be a legal SAS value in the data step. In a SAS program, they have referred differently as:-&Name refers to Macro Variable %Name refers to Macro; SAS Macro Variables. String comparison (not equals) syntax for SAS.

%let mv2 = %sysfunc(findw(&mv,x,,ios)) If you enjoyed this tip on how to format a macro variable in SAS, and want more like it, consider taking our SAS Macro Language 1: Essentials course and/or our SAS Macro Language 2: Advanced Techniques, offered in the classroom, as Live Web classes, or as self-paced e-Learning.

The definition of macro variable PLOTIT demonstrates using %STR to mask blanks and special characters (semicolons) in macro variable values. A macro variable in SAS is a string variable that allows you to dynamically modify the text in a SAS program through symbolic substitution.

The macro processor does not process text inside of single quotes. When a macro variable contains complete SAS statements, the statements are easier to read if you enter them on separate lines with indentions for statements within a DATA or PROC step. SAS macro language (comprised of %LET, %IF, %DO, macro functions etc.) which is processed separately from and before SAS compiler executes SAS programming language code. These references perform symbolic substitutions when they resolve to their value. %let mv=123; data _null_; x="&mv"; put x=; run; For example. " A macro variable is just like a standard variable, except that its value is not a data set and has only a single character value.

Example: Locating a Character With the capability of storing up to 64k bytes of information, you could store a complete program or even the text of a novel within a single macro variable. Macro variables are an efficient way of replacing text strings in SAS code. Subsequent characters can be letters, numeric digits, or underscores. But you do need something to help the parser distinguish between whether you want the value of macro variable VARA or one named VARA_ . Search; PDF; EPUB; Feedback; More. The definition of macro variable PLOTIT demonstrates using %STR to mask blanks and special characters (semicolons) in macro variable values.

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