I am trying to predict warranty contract sales using vehicles sales volume as the dependent variable. I ran a simple regression model but there is a time series pattern that I noticed in the residuals. Proc Autoreg did seem to be a solution to this modeling problem but then in autoreg, dependent variable is time itself whereas in my model exogenous variable is vehicles volume and the residuals are time dependent. Is there any way I can fix this issue?
Registration is open! SAS is returning to Vegas for an AI and analytics experience like no other! Whether you're an executive, manager, end user or SAS partner, SAS Innovate is designed for everyone on your team. Register for just $495 by 12/31/2023.
If you are interested in speaking, there is still time to submit a session idea. More details are posted on the website.