447.Data Gone Wrong to Data Done Right Using IF-THEN Logic in SAS
Mastering IF-THEN Logic in SAS Using a School Dataset with Intentional Errors 1. Introduction Imagine you are working as a SAS programmer in a clinical trial company or a school analytics system. You receive a dataset that looks fine at first glance , but once you start analyzing, everything falls apart ages are negative, dates don’t make sense, names are inconsistent, and duplicate records exist. This is not just a “messy dataset.” This is a silent threat to decision-making . In clinical trials, incorrect patient age can impact dosing decisions. In a school dataset, wrong student data can mislead performance analytics, scholarship eligibility, or attendance tracking. Bad data doesn’t just reduce accuracy it destroys trust . This is where IF-THEN logic in SAS becomes powerful. It allows you to enforce business rules, correct inconsistencies, and transform unreliable data into a trusted analytical asset. Both SAS and R are widely used in data cleaning: SAS excels in...