Hello everyone!
I've done Group based dual trajectories on Stata recently. My sample is twins, so I need to account for the non-independance of the data by a cluster command. It works fine with regressions, but on the TRAJ command of Stata, it says "cluster" command is not allowed.
Do you know any other way in order to account for the non-independance of the data on stata when you perform trajectories ?
Thank you so much for you help,
Frederic
I've done Group based dual trajectories on Stata recently. My sample is twins, so I need to account for the non-independance of the data by a cluster command. It works fine with regressions, but on the TRAJ command of Stata, it says "cluster" command is not allowed.
Do you know any other way in order to account for the non-independance of the data on stata when you perform trajectories ?
Thank you so much for you help,
Frederic
