## Use a bar chart to visualize pairwise correlations

Visualizing the correlations between variables often provides insight into the relationships between variables. I've previously…

By Rick Wicklin 0

Visualizing the correlations between variables often provides insight into the relationships between variables. I've previously…

By Rick Wicklin 3

Recently, I was asked whether SAS can perform a principal component analysis (PCA) that is…

By Rick Wicklin 1

A SAS customer asked how to use SAS to conduct a Z test for the…

By Rick Wicklin 0

My presentation at SAS Global Forum 2017 was "More Than Matrices: SAS/IML Software Supports New…

By Rick Wicklin 2

In a previous article, I showed two ways to define a log-likelihood function in SAS.…

By Rick Wicklin 1

At SAS Global Forum last week, I saw a poster that used SAS/IML to optimized…

By Rick Wicklin 0

Many intervals in statistics have the form p ± δ, where p is a point…

By Rick Wicklin 4

Most regression models try to model a response variable by using a smooth function of…

By Rick Wicklin 3

One of the advantages of the new mixed-type tables in SAS/IML 14.2 (released with SAS…

By Rick Wicklin 2

Lists are collections of objects. SAS/IML 14.2 supports lists as a way to store matrices,…