Error Message - Unknown group name PreviousNext
Mplus Discussion > Growth Modeling of Longitudinal Data >
 Luke Brooks-Shesler posted on Wednesday, March 09, 2016 - 10:46 am
Hi Linda and Bengt,

I am getting the following error message when I try to run the model below:

*** ERROR in MODEL command
Unknown group name 2 specified in group-specific MODEL command.

Thank you for any assistance with this.


NAMES ARE gid gp_size q_trials qty_suc hiscore totpts avg_scor hitrial trial egg_wt
tot_wt device_wt scor_pre es_cur trial_0 es_prev eff scor_cur;

USEVARIABLES ARE gid trial_0 es_prev eff scor_cur;
CLUSTER = gid;
Missing are all (-99);
Between = ;
Within = trial_0 es_prev eff;


scor_cur ON trial_0 es_prev eff;

Output: sampstat tech1;
 Linda K. Muthen posted on Wednesday, March 09, 2016 - 10:56 am
Please send the full output and your license number to
 Luke Brooks-Shesler posted on Thursday, March 10, 2016 - 9:44 am
Just to close the loop for others who might have a similar issue...

Linda identified the issue after looking at my output file.

I'd entered an Mplus command in my Title section. I titled the file Model 1, which activated the "model" command, which then caused the error message.
 Linda K. Muthen posted on Thursday, March 10, 2016 - 4:52 pm
Actually the problem was that you had MODEL 2: in the Title command. MODEL 2: is the specfification for a group-specific MODEL command with label 2. Mplus commands should not appear in the Title command.
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