BookmarkSubscribeRSS Feed
jackice
Calcite | Level 5

Hello all, 

I have a data set of count data (Variable is TOTAL) that on histogram is definitly following Poisson and have many zeros values as well 

When I run this programmation below it runs fine in its default normal mode but as soon as I put Dist Poisson Link=log" in the programmation then SAS cant do it ... I am guessing its because of Log(0)=err but the same model in R with family poisson runs fine ... why and what is my solution in this SAS programmation please? 

  proc glimmix data=FAMAIN plots=ALL;
  class HiveOrientation SunPosition Box Bloc Boxid HiveID Day;
  model TOTAL = HiveOrientation|SunPosition|Box /*/dist=poisson link=log solution*/;
  random Bloc HiveID(Bloc) Day(HiveID Bloc);
  lsmeans SunPosition /pdiff ilink lines;
  run;

3 REPLIES 3
PeterClemmensen
Tourmaline | Level 20

Can you provide some sample data?

jackice
Calcite | Level 5

there u go draycut and thanks for looking into this for me 

jackice
Calcite | Level 5

perhaps i have to change SAS Main procedure and include zero inflated ? or I dont have enough zero and I could manually transformed log(x+1) - count data variance increasing with count value is my case for sure ... 

hackathon24-white-horiz.png

The 2025 SAS Hackathon has begun!

It's finally time to hack! Remember to visit the SAS Hacker's Hub regularly for news and updates.

Latest Updates

What is Bayesian Analysis?

Learn the difference between classical and Bayesian statistical approaches and see a few PROC examples to perform Bayesian analysis in this video.

Find more tutorials on the SAS Users YouTube channel.

SAS Training: Just a Click Away

 Ready to level-up your skills? Choose your own adventure.

Browse our catalog!

Discussion stats
  • 3 replies
  • 2206 views
  • 0 likes
  • 2 in conversation