Hi everyone , I have a database (n=3000 obs). C30Score01 is a my outcome variable (summary score of quality of lifeC30 going from 0 to 100) PA01=continuous Physical Activity and imc01=continuous bmi. I would like to modelised trajectories of my « summary score of quality of lifeC30 » with some independant variable (RISK) and also dependant one (TCOV) over 4 time point. 1- When my « VAR » is continuous, without tcov parameter i can easily found some trajectories by changing the order according the chosen group. But once i add « TCOV » to my model, i have « ERROR: False convergence » no matter the order used. Do you have any advice to solve this issues?? When i use a binary version of the summary score of quality of lifeC30 i can found some trajectories by using TCOV and RISK parameter together. proc traj data=base out=out outstat=os outplot=op outest=oe ; var C30Score01-C30Score04; indep D01-D04; model cnorm; max 100; ngroups 3 ; order 2 2 2; risk age tabac marital income surgery axilla ; tcov PA01-PA04 imc01-imc04; id id_group ; run; 2- Do you have any idea ? when i put max 100.1 than max 100 (Qol going from 0 to 100) this convergence trouble disapear and i can found trajectories. Thanks for you help !!
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