![Plotting multiple time series in SAS/IML (Wide to Long, Part 2)](https://blogs.sas.com/content/iml/files/2015/02/wideseries3.png)
I recently wrote about how to overlay multiple curves on a single graph by reshaping wide data (with many variables) into long data (with a grouping variable). The implementation used PROC TRANSPOSE, which is a procedure in Base SAS. When you program in the SAS/IML language, you might encounter data