![How to align the Y and Y2 axes in PROC SGPLOT](https://blogs.sas.com/content/iml/files/2019/01/Yaxes6-640x336.png)
When you overlay two series in PROC SGPLOT, you can either plot both series on the same axis or you can assign one series to the main axis (Y) and another to a secondary axis (Y2). If you use the Y and Y2 axes, they are scaled independently by default,