- #MACRO PROGRAMMING LANGUAGE LIST SOFTWARE#
- #MACRO PROGRAMMING LANGUAGE LIST CODE#
As any SAS macros, SAS macro functions can have any number (zero or more) of positional or/and named parameters (arguments). In other words, it is the type 2 macro described above. SAS macro function is a SAS macro that generates a value. This type does not generate any SAS executable code, just a value.
#MACRO PROGRAMMING LANGUAGE LIST CODE#
Macros that generate some string values which can be used as part of SAS programming language code or data values, but they are not complete SAS statements or steps. 
Macros that generate some SAS programming language code which can span across SAS statements or steps. There are two distinct types of SAS macros: Clear understanding of this difference is the key to becoming a successful SAS programmer. In this analogy meal=code, cooking=SAS macro language, eating=SAS programming language. The difference between them is like a difference between cooking a meal and eating the meal. 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. SAS programming language (comprised of DATA steps, PROC steps and global statements such as LIBNAME, OPTIONS, TITLE etc.). In other words, SAS code is a combination of two distinct languages: SAS programming languageĪ SAS program usually consists of two, often interwoven layers – macro layer and non-macro layer, each with its own syntax and its own timing of compilation and execution. #MACRO PROGRAMMING LANGUAGE LIST SOFTWARE#
If found, SAS software activates macro processor which resolves and substitutes those macro references according to the macro language syntax before SAS compiles and executes your programming steps. Generally, SAS software processes your SAS program step by step, first scanning it for macro language objects - macro variables referenced as &somename, and macros referenced as %somename. Related blog post: Multi-purpose macro function for getting information about data sets Macro language and macro processor It allows SAS users to modularize programming code with “once written – many times used” components, and in many cases automatically generate data-driven SAS code. SAS® Macro Language immensely empowers SAS programmers with versatility and efficiency of their code development.
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