## Data tables: Nonmatrix data structures in SAS/IML

Prior to SAS/IML 14.2, every variable in the Interactive Matrix Language (IML) represented a matrix.…

Rick WicklinRSS

Distinguished Researcher in Computational Statistics

Distinguished Researcher in Computational Statistics

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*.

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Prior to SAS/IML 14.2, every variable in the Interactive Matrix Language (IML) represented a matrix.…

By Rick Wicklin 4

SAS formats are very useful and can be used in a myriad of creative ways.…

By Rick Wicklin 1

SAS programmers who have experience with other programming languages sometimes wonder whether the SAS language…

By Rick Wicklin 6

It is time for Pi Day, 2017! Every year on March 14th (written 3/14 in…

By Rick Wicklin 21

I recently needed to solve a fun programming problem. I challenge other SAS programmers to…

By Rick Wicklin 0

Suppose you have several discrete variables. You want to conduct a frequency analysis of these…

By Rick Wicklin 1

After reading my article about how to use BY-group processing to run 1000 regression models,…

By Rick Wicklin 0

Monte Carlo techniques have many applications, but a primary application is to approximate the probability…

By Rick Wicklin 7

Longtime SAS programmers know that the SAS DATA step and SAS procedures are very tolerant…

By Rick Wicklin 3

Sometimes SAS programmers ask about how to analyze quantiles with SAS. Common questions include: How…