Hi!
I am having trouble with running the GEE Repeated Measures weighted for missing data model. I am getting:
ERROR: Non-monotone missingness is not allowed.
ERROR: Aborting modeling because of problems with input data.
NOTE: The SAS System stopped processing this step because of errors.
I have complete data to dropout point which varies by patient of course. Some make it to six months and others to 24 months etc. This is not random. Fewer Controls made it into the second year and those patents were doing well when they dropped out. I’m trying to model how our results vary if dropout status is used to weight those who dropped out early. I have eliminated all patients only one dropout and even those with two. Why the perpetual non-monotone error? Baffled!
Thank you for any advice!
Relana
As a minimum it helps to show the code you are using. That may avoid suggestions related to options you are already using or to remove options that you didn't use.
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.