Hello,
I need to perform a Negative Binomial and Poisson distribution for a data that I have. Using GENMOD, COUNTREG and specifying distribution as NB or Poisson, I got the mean as a linear function of x Variables. However, I have my own defined Non linear function such as Hoerl and Sigmoidal function that I need to incorporate in the distribution.
For example, instead of this form.
The function I need to use is below moreover the bottom 2. Where miu can is in terms of E.
Any help would be greatly appreciated.
Your equations don't show up. Anyway, you should consider using proc nlmixed.
I'm not a real user of proc nlmixed , I just went with its description. The negbin distribution is often difficult to fit with proc countreg or proc glimmix, so I would expect at least the same level of difficulty with proc nlmixed. You might ask for help about nlmixed on the SAS Statistical Procedures Community to find some expertise. Best of luck.
Don't miss out on SAS Innovate - Register now for the FREE Livestream!
Can't make it to Vegas? No problem! Watch our general sessions LIVE or on-demand starting April 17th. Hear from SAS execs, best-selling author Adam Grant, Hot Ones host Sean Evans, top tech journalist Kara Swisher, AI expert Cassie Kozyrkov, and the mind-blowing dance crew iLuminate! Plus, get access to over 20 breakout sessions.
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.