SAS Programming Step By Step Tutorial Comments

Comments

SAS Comments

In SAS you can create comments in two ways, the first method is called a block comment. These comments can be any length and contain semicolons. Be sure to avoid placing these type of comments symbols in the first or second columns, because in some operating environments SAS might interpret block comment symbols in columns 1 and 2 as a request to end the SAS session or job.

/* this is a block comment */

Example of block comment: Notice the comment in the block comment “Create a temporary data set called MicrosoftStock”

/*Create a temporary data set 
called MicrosoftStock*/
data MicrosoftStock;
set sashelp.stocks;
where stock='Microsoft';
run;
/*print the data */ 
proc print data=MicrosoftStock;
run;
27 rows from the print statement

The second method is called the comment statement, which begins with an asterisk followed by the comment text and ends with a semicolon.

* comment text/ statement;

Example of comment statement: Notice the comment in the comment statement “where stock=’Microsoft’;

/* 
Create a temporary data set
called MicrosoftStock
*/
data MicrosoftStock;
set sashelp.stocks;
*where stock= 'Microsoft';
run;
/* Print the data */
proc print data=microsoftstock;
run;
27 rows from the print statement and the where statement commented out

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