Discrete-time model with zero varianc... PreviousNext
Mplus Discussion > Structural Equation Modeling >
 yingchun ji posted on Monday, December 04, 2006 - 8:26 pm
attd by infertw wrcontr vasm;
ster by ster1-ster54@1;
ster on attd;
One or more variables have a variance of zero.

Ster is the latent variable of outcome event. Ster1-ster54 are 54 months indicators of the event. It is very common that in a specific time interval, no event occurs to anyone. Then this produces a zero variance variable.
Anyone knows how to fix it?
Thank you so much!
 Bengt O. Muthen posted on Tuesday, December 05, 2006 - 5:56 pm
I think you want to collapse time intervals so that you have some events in each.
Back to top
Add Your Message Here
Username: Posting Information:
This is a private posting area. Only registered users and moderators may post messages here.
Options: Enable HTML code in message
Automatically activate URLs in message