![Rolling statistics in SAS/IML](https://blogs.sas.com/content/iml/files/2017/01/AdvancedAnalytics-2.png)
Last week I showed how to use PROC EXPAND to compute moving averages and other rolling statistics in SAS. Unfortunately, PROC EXPAND is part of SAS/ETS software and not every SAS site has a license for SAS/ETS. For simple moving averages, you can write a DATA step program, as discussed