How to reference another table in sas macro stack overflow. The macro facility is a tool for extending and customizing the. Generating sas code using macros on page 5 explains how to create a macro. Using sas language functions in the data step and macro facility. Please email the country office in china or india to inquire about other discounts or promotions that may apply. The text substitution produced by the macro processor is completed before the program text is compiled and executed. A sas macros code can contain a data step, but a data step cannot contain sas macro code, only compiled macros. A macro language function processes one or more arguments and produces a result.
However, not every program is improved by using macros. You are attempting to mix sas macro language elements with data step elements. With macro, you can specify special characters as text. The sas macro language is a powerful feature for extending the. Syntax for selected sas functions used with the %sysfunc function. Furthermore, it is another language syntax to learn, and can create problems in debugging programs that are even more entertaining than. Sas macro provides an incredible way to make a process easy and automatic. Carpenters complete guide to the sas macro language, third. Other features of the macro language 10 getting started with the macro facility this document is the macro facility language reference for sas. Macro language dictionary find help on all macro statements, functions, etc. A sas program is a combination of data steps, global statements, sas component language scl, sql statements and sas macro statements.
It provides a convenient way to generate a sequence of assembler language statements many times in one or more programs. Three years later, sas 82 introduced an early macro language and the append procedure. In this seminar we will cover the following topics. Posted 08152016 5622 views in the third quarter of 2016, a new appendix entitled macro examples was added to the sas 9. Jims areas of specialization include the data step, application development, web enablement, and the sas macro language. I would like to thank sas for an excellent opportunity to present my ideas. The sas macro language is a very versatile and useful tool. Nov 15, 2012 prior to joining the sas irvine office in 1988, jim was an instructor at ventura college and a sas programmer at the medstat group in santa barbara. How to retrieve the program name that is currently running in batch mode or interactively tree level 3.
Reference for information about the sas macro facility. See chapter, macro language dictionary, on page 163 for details about these statements. You can use autocall macros without having to define or include them in your programs. Macros automatically generate sas code macros allow you to make more dynamic, complex, and generalizable sas programs macros can greatly reduce the effort required to read and write sas. Question on referencing do loop variables as macro. Sas macro programming is considered as an advanced sas. If the reference of a macro variable is within quotations, the double quotation marks must be. Emphasis is placed on understanding how programs with macro code are processed. Sas supplies libraries of autocall macros to each sas site. See the sections on the %ar, %ma, and %pdl macros in chapter 14, the model procedure, for more in.
This course focuses on the components of the sas macro facility. Moving and accessing sas files across operating environments. I have been recieving an error symbolic reference not resolved when i run the macro in sas using following code. You can use arithmetic and logical expressions in specific macro functions and statements. The libraries that you receive depend on the sas products licensed at your site. References, background information or rationale of the macro. Abstract the macro facility is an important feature of the sas language. There are two macros below that give a work around to that limitation.
Requests for a discount voucher must be made prior to registering for your sas global certification exam. Sas macro language reference variable computer science. This seminar is designed to introduce the basics of sas macro language. The macro facility does not allow character values on an iterative %do loop. Generate repetitive macro calls using the %do loop, macro variable, and the execute routine. Other features of the macro language 10 getting started with the macro facility this is the macro facility language reference for sas. Reference resources explains how to increase the modularity, flexibility, and maintainability of your sas code using the sas macro facility. Please dont vote to close if you dont know anything about the language and its not an absolutely. Introduction to sas macro language 3 what is the sas macro facility.
Changes and enhancements introduction sas programs and macro processing macro variables macro processing. A macro language statement instructs the macro processor to perform an operation. Advanced sas macro language techniques destiny corporation, wethersfield, ct abstract this paper will demonstrate the advanced uses of the macro language within the sas system. Provides complete information about macro language elements, interfaces between the sas macro facility and other parts of sas software, and macro processing in general. It will help the novice sas user bridge the gap between beginner and expert programmer. The order in which operations are performed when an expression is evaluated is the same in the macro language as in the data step. Sas macros for faster data manipulation complete tutorial. Explains how to increase the modularity, flexibility, and maintainability of your sas code using the sas macro facility. Reference, second edition until now about the ebook we have sas 9. Introduction to sas macro language 2 getting help use the sas online documentation for help on this subject. This chapter shows you how to define and use macro variables and macros. Reference, second edition suggestions end users are yet to nevertheless still left their own overview of the experience, or you cannot see clearly yet. A sas macro is way of defining parts of or collections of sas statements which can be.
The macro language functions are listed in the following table. Sas macro language question sas support communities. The complete guide to the sas output delivery system. It is a reference for the sas macro language processor and denes the sas macro language elements. Node 2 of 7 node 2 of 7 macro variables defined by users tree level 3. They are used by other sas programs without explicitly declaring them. Sas macro language also gives you the opportunity to insert programming steps inside a sas code. Question on referencing do loop variables as macro variables in a datastep posted 10082015 510 views. And, within a sas macro, a %if statement doesnt have to be within a data step, but.
A native of southern california, jim enjoys anything in the warm california. It consists of a string of keywords, sas names, and special characters and operators, and it ends in a semicolon. Upon completion of this tutorial, you would understand how to create macros and where they can be used. The sas macro language is another language that rests on top of regular sas code. Expressions that compare character values in the %if%then. It is often used to reduce the amount of regular sas code and it facilitates passing information from one procedure to another procedure. Creating macro variables using the %let statement or. Introduction follow these pages to learn about the macro facility. The macro language does not contain a subsetting %if statement. Sas has many macro statements which are inbuilt in the sas programming language. Writing cleaner and more powerful sas code using macros.
Executes a section of a macro repetitively based on the. Macro language basics at its core, the sas macro language is a tool for generating sas code. These two macros use different techniques to step through singlebyte characters that are passed to the macro. Reference there are several sas system options that apply to the macro facility. Macro variables defined by the macro processor tree level 3. These include interaction between the data step and sas macro language, dynamic creation of programs which write themselves based on the incoming. Programming language for string manipulation strings are characters usually sas statements or pieces of sas. Sas meets the information needs of new and experienced users with a variety of delivery methods including pdf. Moreover, we learn components of sas macro code and some benefits of sas macro. So i want to reference a sas do loop variable as a macro variable, so that i can call different variables within the dataset based on what the. You can use all macro functions in both macro definitions and open code. 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. Aug 15, 2014 the sas macro language is a characterbased language. Reference pdf files click the title to view the chapter or appendix using the adober acrobatr reader.
You will also want to use macros if you do regular routine functions, so you want to study sas macro language as well. Sas global certification exams are available at a 50% discount off the standard, fullprice, published fees. Building reusable and highly effective tools with the sas macro. This document is the macro facility language reference for sas. If used properly, it can make programming easier and more fun. Some of these special characters for example, a semicolon or percent sign are part of the sas language instruction set, so we need a way for the macro processor to interpret a particular special character when its being used as. In general, a macro language function processes one or more arguments and produces a result. 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 institute inc, getting started with the sql procedure, version 6, first edition. Macro functions include character functions, evaluation functions, and quoting functions. Executes a section of a macro repetitively based on the value of an index variable %do %while expression. Common examples are terminating a program when some condition is met or capturing the runtime value of a variable in the program log. Introduction to sas macro language a to z directory. Here, we will see different sas macro variables, functions of macro in sas programming language.
For more information, see chapter 6 in sas macro language. Essentials course is offered multiple times in a variety of locations and training topics. There are 17 programs with descriptions for you to use. Place all sas data set variables into a macro variable tree level 3.
Mastering this facility will enable the novice user to become an accomplished programmer. Sas version 4 had limited features, but made sas more accessible. In 1985, sas was rewritten in the c programming language. The correct bibliographic citation for this manual is as follows. Question on referencing do loop variables as macro variables in a datastep posted 1008. It has some syntactical similarities with the base sas programming language, but its actually an entirely separate language. An introduction to sas macros 10 the sas macro language a second sas programming language for string manipulation.
Macro language is an extension of assembler language. Since the %ar, %ma, and %pdl macros are used only with proc model, they are documented with the model procedure. Sas macro variable computer science macro computer. These statements are documented in your base sas documentation. To answer your own question you have to read the links that patrick provided, as well as anything else you can find regarding the sas macro language. Initially i select as set of role numbers using sql into a list as.
It also helps create dynamic variables within the code that can take different values for different run instances of the same code. You set a value and then do not reference it in the code snippet revealed in your post. Sas institute inc, sas macro language reference, first edition. Executes a section of a macro repetitively while a condition is true. Version 5 introduced a complete macro language, array subscripts, and a fullscreen interactive user interface called display manager. In the third quarter of 2016, a new appendix entitled macro examples was added to the sas 9. I strongly recommend you dont precompile macros but store them simply as.
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