## A simple trick to construct symmetric intervals

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

By Rick Wicklin 0

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

By Rick Wicklin 2

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

By Rick Wicklin 3

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

By Rick Wicklin 4

In the beginning SAS created procedures and output. The output was formless and void. Then…

By Rick Wicklin 6

In some applications, you need to optimize a linear objective function of many variables, subject…

By Rick Wicklin 5

SAS formats are flexible, dynamic, and have many uses. For example, you can use formats…

By Rick Wicklin 3

Last week I read an interesting paper by Bob Rodriguez: "Statistical Model Building for Large,…

By Rick Wicklin 23

I'm addicted to you. You're a hard habit to break. Such a hard habit to…

By Rick Wicklin 4

Two of my favorite string-manipulation functions in the SAS DATA step are the COUNTW function…

By Rick Wicklin 4

Every beginning SAS programmer learns the simple IF-THEN/ELSE statement for conditional processing in the SAS…