Proc Traj Error - No trajectory information found

[SG1993]

Hi, 

I am trying to run a 3 group GBTM model with trajectory order 002 using Proc Traj with a sample size of 814. However, the log is showing me a warning that no trajectory pattern was found for 18 people. I wanted to understand why that could be. 

It would be great if anyone could share their insights. Please find the screenshot below. 

[JosvanderVelden]

What interface are you using to run proc traj? SAS Studio, SAS Enterprise Guide, SAS 9.4 or SAS 9.4 with DBCS?

[SG1993]

It is SAS 9.4 with DBCS.

[SASKiwi · Accepted solution]

Have you tried eyeballing the 18 people's data and compared it to the rest? There are no errors in your log so your output could still be valid.