What is a SAS function?
A SAS function is a built-in method to perform a computation or system manipulation and return a value. A CALL routine alters variable values or performs other system functions. CALL routines are similar to functions, but differ from functions in that you cannot use them in assignment statements.
How do you call 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.
Where are SAS macros located?
Re: Finding Location of SAS Macros Have a look the MAUTOLOCDISPLAY SAS System Option. When you call an autocall macro, it will display the location of the code.
What is call Symputx in SAS?
CALL SYMPUT and CALL SYMPUTX in SAS are the most commonly used DATA Step call routines to interact with the Macro Facility in SAS. Both are used to assign a value of DATA step to a macro variable. SYNTAX: CALL SYMPUT(macro-variable, value);
What is Floor in SAS?
Returns the largest integer less than or equal to a numeric value expression.
What is Symput function in SAS?
ABSTRACT AND INTRODUCTION. CALL SYMPUT is a SAS® language routine that assigns a value produced in a DATA step to a macro variable. It is one of the DATA step interface tools that provides a dynamic link for communication between the SAS language and the macro facility.
Can SAS macro return value?
A SAS macro returns text that is inserted into the processing stream. Returns is absolutely an appropriate term for that. And when the text happens to be a single numeric, then it’s fine to say that it returns a value.
What is _N_ in SAS?
What is the automatic variable _n_? When you open a SAS data file in a data library, you will notice the observations are numbered at the first column. The automatic variable _n_ represents the observation numbers. This variable hidden in the DATA step is simple yet powerful in programming practice.
What is Symget in SAS?
Details. SYMGET returns a character value that is the maximum length of a DATA step character variable. A returned value that is longer is truncated. If SYMGET cannot locate the macro variable identified as the argument, it returns a missing value, and the program issues a message for an invalid argument to a function.
What is SAS in statistics?
SAS is a command-driven software package used for statistical analysis and data visualization. It is available only for Windows operating systems. It is arguably one of the most widely used statistical software packages in both industry and academia.
What does macro do in SAS?
A SAS macro is way of defining parts of or collections of SAS statements which can be carried out repeatedly or which can substitute names of datasets or variables with symbolic names. SAS macro language also gives you the opportunity to insert programming steps inside a SAS code. SAS Macro Advantages:
What is SAS macro language?
Macro language is a facility for generating SAS code programmatically. The macro language variables, functions, and statements are interpreted by the macro processor as a SAS program is being parsed at compile time. The text that is generated (resolved) by the macro language can then be interpreted as SAS code and run by the SAS compiler.
What is SAS macro program?
SAS Macros are typically considered as part of advance SAS Programming and are used widely in reporting, data manipulation and automation of SAS programs. They do not help to reduce the time of execution, but instead, they reduce repetition of similar steps in your program and enhance the readability of Programs.
Do loop in SAS macro?
Syntactically speaking, while SAS programming loops or do-loops always reside within SAS data step , SAS macro loops or %do-loops are located within SAS macros. They can be either within a data step (or proc step) generating multiple data/proc step statements, or outside data/proc step generating multiple data/proc steps or global statements.