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

Compute the square root matrix

Children in primary school learn that every positive number has a real square root. The number x is a ... Read More

How to fit a variety of logistic regression models in SAS

SAS software can fit many different kinds of regression models. In fact a common question on the SAS Support ... Read More

All I really need to know about Newton's method I learned in primary school

I was eleven years old when I first saw Newton's method. No, I didn't go to a school for ... Read More

The Babylonian method for finding square roots by hand

When I was in the sixth grade, I learned an iterative procedure for computing square roots by hand. Yes, ... Read More

Ten tips before you run an optimization

Optimization is a primary tool of computational statistics. SAS/IML software provides a suite of nonlinear optimizers that makes it ... Read More

What is a DATA step view and why is it important?

Last week I analyzed 12 million records of taxi cab transactions in New York City. As part of that ... Read More

Create a package in SAS/IML

In a previous post I showed how to download, install, and use packages in SAS/IML 14.1. SAS/IML packages incorporate ... Read More

How much do New Yorkers tip taxi drivers?

When I read Robert Allison's article about the cost of a taxi ride in New York City, I was ... Read More

Packages: A new way to share SAS/IML programs

My previous post highlighted presentations at SAS Global Forum 2016 that heavily used SAS/IML software. Several of the authors ... Read More

Matrix computations at SAS Global Forum 2016

Last week I attended SAS Global Forum 2016 in Las Vegas. I and more than 5,000 other attendees discussed ... Read More