Hello;
I need to run a very simple nonlinear model such that: Y=x/sqrt(1+x^2) + z
The problem is that I have a panel data structure. Does SAS offer any procedures that can run nonlinear models on panel data?
Thanks for reading
Hi Niam,
Thanks for the question. Yes, SAS has a number of procedures for nonlinear panel data models. I am going to
TCOUNTREG: Count data models (Poisson and Negative Binomial) with Fixed and Random Effects (subject specific intercepts)SAS/ETS(R) 12.1 User's Guide
NLMIXED: Syntax and models similar to PROC MIXED but non-linear models. SAS/STAT(R) 12.1 User's Guide
You can also analyze repeated measures with GLIMMIX.
I will warn you. Since you used the term "panel" and not "longitudinal" to describe the data, I am going to assume you are coming from more of an observational data background. For that reason some of the terminology of the *MIX*-type procedures may look a little odd at first glance.
Let me know if you need any assistance getting started-Ken
Hi Niam,
Thanks for the question. Yes, SAS has a number of procedures for nonlinear panel data models. I am going to
TCOUNTREG: Count data models (Poisson and Negative Binomial) with Fixed and Random Effects (subject specific intercepts)SAS/ETS(R) 12.1 User's Guide
NLMIXED: Syntax and models similar to PROC MIXED but non-linear models. SAS/STAT(R) 12.1 User's Guide
You can also analyze repeated measures with GLIMMIX.
I will warn you. Since you used the term "panel" and not "longitudinal" to describe the data, I am going to assume you are coming from more of an observational data background. For that reason some of the terminology of the *MIX*-type procedures may look a little odd at first glance.
Let me know if you need any assistance getting started-Ken
Thank you very much for the great help. I will review these PROCs and get back to you in case I have any more questions
Are you ready for the spotlight? We're accepting content ideas for SAS Innovate 2025 to be held May 6-9 in Orlando, FL. The call is open until September 25. Read more here about why you should contribute and what is in it for you!
ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.
Find more tutorials on the SAS Users YouTube channel.