Rick Wicklin
Rick Wicklin RSS
Research Statistician Developer

Rick Wicklin, PhD, is a distinguished researcher in computational statistics at SAS and is a principal developer of PROC IML and SAS/IML Studio. His areas of expertise include computational statistics, simulation, statistical graphics, and modern methods in statistical data analysis. Rick is author of the books Statistical Programming with SAS/IML Software and Simulating Data with SAS. Follow @RickWicklin on Twitter.

Recent Posts

Weighted percentiles

Many univariate descriptive statistics are intuitive. However, weighted statistic are less intuitive. A weight variable changes the computation of ... Read More

Halley's method for finding roots

Edmond Halley (1656-1742) is best known for computing the orbit and predicting the return of the short-period comet that ... Read More

Create an animation with the BY statement in PROC SGPLOT

It is easy to use PROC SGPLOT and BY-group processing to create an animated graph in SAS 9.4. Sanjay ... Read More

The smooth bootstrap method in SAS

Last week I showed how to use the simple bootstrap to randomly resample from the data to create B ... Read More

Formats for p-values and odds ratios in SAS

Last week I showed some features of SAS formats, including the fact that you can use formats to bin ... Read More

Compute a bootstrap confidence interval in SAS

A common question is "how do I compute a bootstrap confidence interval in SAS?" As a reminder, the bootstrap ... Read More

Use SAS formats to bin numerical variables

SAS formats are flexible, dynamic, and have many uses. For example, you can use formats to count missing values ... Read More

Video: Writing packages: A new way to distribute and use SAS/IML programs

My presentation at SAS Global Forum 2016 was titled "Writing Packages: A New Way to Distribute and Use SAS/IML ... Read More

Compute highest density regions in SAS

In a scatter plot, the regions where observations are packed tightly are areas of high density. A contour plot ... Read More

Female world leaders by year of election

This week Hillary Clinton became the first woman to be nominated for president of the US by a major ... Read More