Sas macro parameter passing

However, for the purpose of passing commaseparated value as a macro parameter, i would rather not create that bracket problem in the first place even though its very tempting and beautiful, and just use either %stra, b, c if a, b and c are resolved values, or %quote. You must define any positional parameters before any named parameters. Passing parameter by reference hsiwei yu michael, people technology solutions inc, edison, nj gary huang, infostat inc. A simple and practical approach to the sas macro facility michael g.

For edit line macros, only one parameter is passed to the macro. Call execute routine sas customer support site sas support. String list as macro parameter sas support communities. In sas macro i have defined a output path for my excel files and i want the same path to be used in vba macro without making it a fixed value, so if i run this sas code to get a output at a different location my vba picks up that path from sas macro variable. To help you learn how to define your own macros, this section presents a few examples you can model your own macros after. In this example, the macro prnt generates a proc print step. You code runs perfectly fine from eg, see this log. Mar 16, 2015 when the sas program runs, the %sysget function gets the values that you specified by using the set command line option.

Do not use %str to enclose other macro functions or macro invocations that have a list of parameter values. Sas runs the program in batch mode and creates a sas data set out1. Create a sas macro variable that contains a list of values. Execution of sas statements generated by the execution of the macro will be delayed until after a step boundary. Sas macro, passing value as string to where clause stack. In this seminar we will cover the following topics. The ability to pass parameters to macros make them much more useful. How to pass a varying list of parameters to a macro amadeus. Before sas can compile and execute your program, sas must pass your macro statements to. Macro with mixed parameter %macro myprint var1, var2t.

These may be a list of variables in a data set or even a list of data set names. As the number of required reruns increases one could use a doloop to rerun the same macro, passing macro parameters from a list of parameter values stored in a global macro variable. Passing commadelimited values into sas macros and macro. Macros allow you to substitute text in a program and to do many other things. Using the % macro statement with positional parameters. I want to create a sas macro and the parameters are also macro variables, so how can i pass these macro variables into macro. Data set values will be passed to applications via macro parameters. Passing data set values into application parameters lex jansen. The main difference is that it is not necessary to use %let statements or symput calls to create macro variables passed as parameters. It doesnt seem to be removing replacing with blank the strings that i am providing as the last parameter in the macro call. Passing parameters from sas iml matrices the submit statement enables you to substitute the values of a sas iml matrix into the statements that are submitted to the sas system. Use the full power of sas in your functionstyle macros. Using parameters in sas visual analytics sas users. Using parameters within the macro facility sas users.

If you fix your macro so that it generates a valid select statement then it works. Mastering this facility will enable the novice user to become an accomplished programmer. For more information, see working with an edit line command table. You offered a great solution for removing the brackets as a problem on its own. Data driven applications can be defined as sas macros. Parameters are macro variables whose values are set when. Carpenter california occidental consultants, oceanside, california abstract when using the macro language it is not at all unusual to need to manipulate a list of values. Each pair of seed1, seed2 has a students name associated with it.

To avoid this problem, stored process parameters are masked with sas macro quoting functions before being set into macro. Specifying mixed parameter lists in macro progra ms 86 defining a macro program that can accept a varying number of parameter values. The best option follows ie, using the recommended method from the paper above. Using parameters within the macro facility sas users sas blogs. It converts them to character values and concatenates them into a blankseparated string, which is then stored into the macro variable named paramlist. Macro parameters in the context of parameter passing, macro parameters used in conjunction with a macro code function in a manner similar to global macro variables. When calling the macro you can pass the positional parameter values.

This parameter is the line command, including any repetition, as it was entered on the line. Note the initial %test macro doesnt return any rows for the blank parameter, while the second %test2 does. I want to add in the students name and have the program print out the seed1, seed2 and name as well as the proc means for the data that are generated for each student. Then you dont have to worry about quoting in the macro call. Notice that the options are specified as keywordvalue pairs such a set amin 0. Macro arguments should be written in after the macro name within brackets. Because %str masks parentheses without a match, the macro processor does not recognize the arguments of a function or the parameter values of a macro invocation. For a description of quoting in sas macro language, see macro quoting. In addition, do not use macro reserved words as a macro name. Sas macros with parameters parameterized macros sas guide.

In this blog post, i also discuss how you can pass in a varying number of parameter values. It is often used to reduce the amount of regular sas code and it facilitates passing information from one. Storing and using a list of values in a macro variable. What you posted is actually one way to allow the inclusion of commas in the value of a macro parameter. There are simpler ways to test for a macro parameter being blank that work in most cases, and read the paper for more details about the simpler options.

Testing for an empty parameter in a sas macro stack overflow. Storing and using a list of values in a macro variable arthur l. Jan 18, 2016 the proc sql statement reads the values from the x variable in the paramdata data set. How to pass parameters to a sas program the do loop. For example, the following program calls the univariate procedure to analyze data in the mydata data set that was created in the section calling a procedure. Sas macro, passing value as string to where clause. A sas program can contain any number of macros, and you can invoke a macro any number of times in a single program. Call execute passes the value of the date variable in the dates data set to macro rept for its dat parameter, the value of the var1 variable in the reptdata data set for its a parameter, and reptdata as the value of its dsn parameter. The sas macro language is a very versatile and useful tool. For a list of macro reserved words, see appendix 1, reserved words used in the macro facility, in sas macro language. If an execute routine argument is a macro invocation or resolves to one, the macro executes immediately. Macro variables macro variables hold the value of text strings the easiest way to assign a value to a macro variable is using %let. Carpenters complete guide to the sas macro language.

By enclosing the value inside or the sas compiler will know that the commas do not mark the start of new parameter values. The macro facility is an important feature of the sas. The sas macro language is an extremely flexible tool which facilitates sas programmers with the ability to rerun the same code for a set of different parameters. Writing cleaner and more powerful sas code using macros myweb. Using an execution macro quoting function in the macro definition is the simplest and best way for the macro processor to accept resolved values that might contain special characters. This seminar is designed to introduce the basics of sas macro language. Writing cleaner and more powerful sas code using macros. Jul 17, 2019 thank you, bart, for following it through. Jan 29, 2015 here are two stepbystep examples that show you how to create and use parameters when designing sas visual analytics reports. The parameter in the first position is var, which represents the sas variables that appear in the var statement. String list as macro parameter posted 01142009 593 views in reply to daverybbw this looks like a timing thing, so try using a %bquote instead of %str e.