## 6 tips for timing the performance of algorithms

When you implement a statistical algorithm in a vector-matrix language such as SAS/IML, R, or…

By Rick Wicklin 0

When you implement a statistical algorithm in a vector-matrix language such as SAS/IML, R, or…

By Rick Wicklin 3

As my colleague Margaret Crevar recently wrote, it is useful to know how long SAS…

By Rick Wicklin 0

Imagine that you have one million rows of numerical data and you want to determine…

By Rick Wicklin 1

Evaluating a cumulative distribution function (CDF) can be an expensive operation. Each time you evaluate…

By Rick Wicklin 1

Friends have to look out for each other. Sometimes this can be slightly embarrassing. At…

By Rick Wicklin 1

A common task in SAS/IML programming is finding elements of a SAS/IML matrix that satisfy…

By Rick Wicklin 0

A SAS customer showed me a SAS/IML program that he had obtained from a book.…

By Rick Wicklin 10

My last blog post showed how to simulate data for a logistic regression model with…

By Rick Wicklin 18

In my book Simulating Data with SAS, I show how to use the SAS DATA…

By Rick Wicklin 3

In a previous post, I stated that you should avoid matrix multiplication that involves a…