I have a 4-class LGMM in which I am regressing class membership and growth factors on covariates.
After I introduced the regression of the growth factors into the model, I have had considerable difficulty figuring out how to generate the estimated class means.
I realize that there is no Means table anymore and that the intercept values now represent the class specific means based on the regressions of the growth factors.
What I have been able to figure out is how to generate the means that are reproduced in the Figure of the trajectories. An earlier post said that if you use grandmean centering this will subtract the sample mean and give you the correct means. Although this approximated the means in the figure, it was still not accurate.
I want to produce the mean values for a table and be sure they match the values in the Figure. Any help is greatly appreciated.