This post demonstrates and example of how to create a FIFO Queue in the SAS Data Step using the dynamic nature of the hash object.

This post demonstrates how to use the %PutHash Macro to print the content of a SAS Hash Object in the log.

This post investigates when the data step retains variable value at each iteration and when it sets variable values to missing.

This post investigates the concept of macro arrays in SAS. We will explore what a macro array is and how to create and use them with %Array and %Do_Over.

This post explores the %Eval Macro Function by example. I demonstrate how to use the Eval Function explicit and implicit and how it differs from Sysevalf.

This post demonstrates examples of how to use the Parmbuff Option in the SAS Macro Statement to write macros with variables number of arguments.

This post shows five SAS quoting functions solves most masking issues in the macro language. The Str, Nrstr, Bquote, Nrbquote, Superq and Unquote function.

This post demonstrates how to evaluate an arithmetic expression in a character variable in the SAS Data Step using the Resolve and %Sysevalf Macro Function.

In this post, I demonstrate three different approaches to select the top N values By Group in SAS using PROC RANK, PROC SUMMARY and the hash obejct.

A frequent question in the SAS Community is to search for a value in an array or list of variables. Either numeric or character. This post demonstrates a few different approaches to the problem. Iterating through the array manually, using the Whichn/Whichc Function...