BookmarkSubscribeRSS Feed
EricVanceMartin
Obsidian | Level 7

 

It seems that with the option / SOLUTION in the RANDOM statement of PROC MIXED, I can create a table of estimated random coefficients, which I need. I have two questions:

 

1. How do I, if I can, save them as a dataset? 

 

2. What do the results represent? Are they the estimated coefficients themselves or are they deviations from the mean (the fixed coefficient)? If they are deviations, how do I get the actual coefficient? Is it, for example, FIXED COEFFICIENT - DEVIATION, FIXED COEFFICIENT + DEVIATION, ...?

 

Thanks!

 

 

1 REPLY 1
SteveDenham
Jade | Level 19

A little quick digging through the reference for the RANDOM statement:

 

1. ods output solutionr=solutionr; will put the values into a dataset

2. The results are EBLUPS for the random effects. A good way to think of them is as residuals of the fixed effects (y minus X * beta hat) times (G hat *Z prime *V hat-inverse), so they are scaled by a quadratic form.

 

For a quick review, look at Mixed Models Theory in the Details section of the MIXED documentation.

 

Steve Denham

SAS Innovate 2025: Save the Date

 SAS Innovate 2025 is scheduled for May 6-9 in Orlando, FL. Sign up to be first to learn about the agenda and registration!

Save the date!

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
  • 1 reply
  • 1777 views
  • 0 likes
  • 2 in conversation