Autoregressive model with count data PreviousNext
Mplus Discussion > Growth Modeling of Longitudinal Data >
 Shiko Ben-Menahem posted on Thursday, October 27, 2016 - 5:41 am
Dear Prof Muthén,

When running an autoregressive model with (zero inflated) count data, I get the message that covariances (among different variables at the same time points) are not allowed. Does this imply I can interpret an autoregressive model without covariances or should I rather specify a completely different model for count data?

Many thanks!
 Bengt O. Muthen posted on Thursday, October 27, 2016 - 5:56 pm
Use a factor to make two count DVs have a residual correlation.

f BY y1-y2; f@1;

This gives you the res cov in the y2 loading.
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