Advanced SDTM Programming Tip: Automating SUPPQUAL Domain Creation Advanced SDTM Programming Tip: Automating SUPPQUAL Domain Creation Optimize Your SDTM Workflows with Efficient Automation Techniques Introduction to SUPPQUAL Automation The SUPPQUAL (Supplemental Qualifiers) domain is used to store additional information that cannot fit within a standard SDTM domain. Manually creating the SUPPQUAL domain can be time-consuming and error-prone, especially for large datasets. In this article, we’ll explore an advanced tip to automate its creation using SAS macros. Use Case: Adding Supplemental Qualifiers to a Domain Imagine you have an SDTM AE domain (Adverse Events) and need to capture additional details like the investigator’s comments or assessment methods that are not part of the stan...

Advanced SAS Programming Tip: Using HASH Objects Advanced SAS Programming Tip: Using HASH Objects Unlock the Power of SAS for Efficient Data Manipulation Introduction to HASH Objects In SAS, HASH objects provide an efficient way to perform in-memory data lookups and merge operations, especially when dealing with large datasets. Unlike traditional joins using PROC SQL or the MERGE statement, HASH objects can significantly reduce computational overhead. Use Case: Matching and Merging Large Datasets Suppose you have two datasets: a master dataset containing millions of records and a lookup dataset with unique key-value pairs. The goal is to merge these datasets without compromising performance. Code Example: Using HASH...

Advanced SAS Programming Tip: Mastering Macro Variables Advanced SAS Programming Tip: Mastering Macro Variables Unleash the power of SAS with this advanced technique. Introduction Macro variables are a powerful tool in SAS that allow you to dynamically generate code. By understanding and effectively using macro variables, you can write more efficient and flexible SAS programs. The Basics of Macro Variables A macro variable is a placeholder that is replaced with its value during macro processing. You define a macro variable using the %LET statement and reference it using the %SYSFUNC or %SYSEVALF functions. Advanced Techniques 1. Conditional Logic You can use the %IF-%THEN-%ELSE statements to create conditional logic within your macro code. This allows you to dynamically generate code based on specific conditions. 2...