BookmarkSubscribeRSS Feed
🔒 This topic is solved and locked. Need further help from the community? Please sign in and ask a new question.
AprilS
Calcite | Level 5
Hi All,

Does anyone know how to model 4-level clustered data with binary outcome using proc glimmix or any other proc?

The data has 3 nested clusters like this:A(B(C(level 1 events))).

Any help is much appreciated!
1 ACCEPTED SOLUTION

Accepted Solutions
SteveDenham
Jade | Level 19

This should be as simple as:

 

proc glimmix data=yourdata;
class A B C <fixed effects> ;
model <response> = <fixed effects>/dist=binomial;
random intercept B B*C/subject=A;
run;

Here everything in angle brackets is up for grabs, without greater detail for the design.  The RANDOM statement is written in intercept form to improve convergence properties.

 

Try filling in the angle brackets, and seeing how this works.

 

Steve Denham

View solution in original post

1 REPLY 1
SteveDenham
Jade | Level 19

This should be as simple as:

 

proc glimmix data=yourdata;
class A B C <fixed effects> ;
model <response> = <fixed effects>/dist=binomial;
random intercept B B*C/subject=A;
run;

Here everything in angle brackets is up for grabs, without greater detail for the design.  The RANDOM statement is written in intercept form to improve convergence properties.

 

Try filling in the angle brackets, and seeing how this works.

 

Steve Denham

sas-innovate-2024.png

Join us for SAS Innovate April 16-19 at the Aria in Las Vegas. Bring the team and save big with our group pricing for a limited time only.

Pre-conference courses and tutorials are filling up fast and are always a sellout. Register today to reserve your seat.

 

Register now!

What is ANOVA?

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.

Discussion stats
  • 1 reply
  • 1375 views
  • 0 likes
  • 2 in conversation