BookmarkSubscribeRSS Feed
llm1
Calcite | Level 5

how to analyze data from a split-split-plot design with multi years? Would the following code work?

wc is whole plot factor, n is the sub plot factor, and sr is the sub-sub plot factore.

 

proc mixed data=file2;

class year rep wc n sr;

model plants=rep year*rep year|wc|n|sr;

random year*rep*wc year*rep*wc*n;

 

Thanks!

 

2 REPLIES 2
SteveDenham
Jade | Level 19

Same plots from year to year, so that these are repeated measures in time as well?

 

At least remove rep from the model statement, and move to a RANDOM statement.  Maybe something like:

 

proc mixed data=file2;
class year rep wc n sr;
model plants= year|wc|n|sr;
random intercept year year*wc year*wc*n/subject=rep;
repeated year/type=un subject=rep;
run;;

 

 

 

Steve Denham

llm1
Calcite | Level 5
no, new site new trial each year.

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
  • 2 replies
  • 1743 views
  • 0 likes
  • 2 in conversation