## 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.…

By Rick Wicklin 0

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

By Rick Wicklin 3

A categorical response variable can take on k different values. If you have a random…

By Rick Wicklin 3

A common question on SAS discussion forums is how to repeat an analysis multiple times.…

By Rick Wicklin 11

On discussion forums, I often see questions that ask how to Winsorize variables in SAS.…

By Rick Wicklin 1

In a previous article, I showed how to simulate data for a linear regression model…

By Rick Wicklin 5

If you are a SAS programmer and use the GROUP= option in PROC SGPLOT, you…

By Rick Wicklin 3

Many SAS procedure compute statistics and also compute confidence intervals for the associated parameters. For…

By Rick Wicklin 0

A previous post discusses how the loess regression algorithm is implemented in SAS. The LOESS…

By Rick Wicklin 8

Finding nearest neighbors is an important step in many statistical computations such as local regression,…

By Rick Wicklin 0

A kernel density estimate (KDE) is a nonparametric estimate for the density of a data…