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Learn SAS

Learn about the latest tips, tutorials, upcoming events and certifications

Rick WicklinMay 19, 2025 0

Calculate the Gini-Simpson diversity index in SAS

An article by David Corliss in Amstat News (Corliss D. (2025) "Quantifying Diversity: Calculating the Gini-Simpson Diversity Index") discusses a new statistical measure of diversity that was adopted by the US Census Bureau. The statistic is called the Gini-Simpson diversity index. The Census Bureau has published an article about how

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Advanced Analytics | Learn SAS

Mahesh ShettyMay 15, 2025 0

How to become a clinical SAS programmer in 6 months: A structured learning approach

If you have a background in pharmacy, life sciences, biotechnology, or statistics – and you’re curious about the world of clinical research – there’s one career path you might want to explore: clinical SAS programming. Maybe you’ve heard the term before and wondered what it really involves. The good news?

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Education

Analytics | Learn SAS

Rick WicklinMay 12, 2025 0

Stratified bootstrapping and when to use it

When you use the bootstrap method in statistics, the most common resampling method is called case resampling. For data that has N observations, each bootstrap sample is created by sampling with replacement from the N observations (or "cases") in the data. However, if the data set includes categorical variables, it

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