In SAS, Macro’s is an additional facility in the program for extending and customizing SAS programming codes, whereby it reduces the amount of codes that are entered to do repeated common tasks during programming. While using macrofacility, programmers creates a macroname for repetition of common tasks and during programming these common repetitive tasks are called into SAS using their respective macronames.
During creation of new-macro-variable-names within the base SAS programming code or calling in already existing macro-variable-names into base SAS programming code, a programmer might face problems in compiling the code or managing errors during the process of using macro-variable-names in the code. Some of the common problems and errors are discussed below.
There are different stages in the macro-processing unit to process macros. Macro-errors are generated at each stage of compiling a macro-code; For example, macro-errors can be generated at these stages like,
Macro-open code processing
If misspelling is done while typing a macrofunction name or omitting a semicolon, it will generate syntax error during compilation process, which says that, the syntax written by the programmer does not confirm to the rules of the macroLanguage. Or programmer might refer to a variable that is not resolved during programming which leads to variable resolution error. During programming there could be execution errors or semantic errors too; these are usually generated when a macro-facility has faulty logic. That is, statements present in the macro-facility are not executed in the right order or in the right way that the programmer has expected.
During the macrocode, sometimes the SAS windowing environment stops responding after the macro_code is submitted for processing. The cause behind this may be missing of semicolon or parenthesis or quotation mark or macro_end_statement or this error can be from missing of unclosed comment during the programming. This type of errors can be solved by checking the program for any missing syntax and correcting them, so that the program can run successfully.
While compiling a macro in SAS environment, sometimes the macrowill not compile correctly. If the macrois not compiling correctly during compilation process then there might be some syntax errors done during typing a macro_code, to overcome this process, programmer has to identify and write the exact syntax to compile the macro. Only syntactically correct macrosare compiled by SAS compiler.
Sometimes during the execution of macrosin SAS, the execution process may get terminated in the middle. It might be due to non-standard values that are passed to a macro, for example a parameter. That is, there might be less number of parameters that are passed than required. Therefore, passing exact number of parameters will execute the macrosuccessfully.
Solving common errors while macro_generation:
Major problem arises when a newmacro is created or calling already existing macroin SAS code, for example if a macroname is created with a name ” XXXX “, and it has certain values within that name, now programmer wants to repeatedly call those values into another program. So he/she need to call the same name each time.
If macroname is misspelled when invoking amacro, that is if the macroname is misspelled as ” XXX ” while invocating, then while compilation SAS generates an error message stating that ” Apparent symbolic reference ” XXX ” not resolved ” that is the macroname ” teen xxx porn HD FREE ” was not created and it cannot call any associated values.
The exact solution to overcome this process is to call the macro_name with the exact name or by developing bug free_macro. Here is the explanation how to develop bug free_macros
Bug_free_macros: What is bug freemacro? How this is used? Macrois always a huge program written at once. While coding such programs at once, a programmer always performs errors, which makes the program unresponsive. Therefore, while writing the codes, it is advised that the programmer make their codes into small sections, such that each section of the code will contain macroprogram, and each section is tested separately by compiling each section individually. If you cherished this article and you would like to obtain more info regarding xxx mom son fuck HD movies nicely visit our webpage. If each section is compiled successfully, then placing all the sections together can make the complete program compile successfully. Such programs are commonly referred to as bug_free_macros.
Conclusion: Writing a Macrosfacility will make the repetitive common tasks easier and at the same time the same macrofacility can be used for different datasets. But creating a macro is a huge process. Thus by understanding the different types of macroerrors that are generated, and knowing how to solve them, can make programming work easier and faster.
Clinnovo is a clinical innovation company. It is pioneer CRO industry in India. Clinnovo offers professional Clinical Research Course, clinical data management course , SAS and imaging training. Clinnovo has been serving different bio-pharma industries across the world with excellence and high quality. For more information contact at +91 9912868928, 040 64635501