st: Growth curve with -gllamm- (any way to get peak velocity and height?)

[Joseph Wagner <joseph.wagner@wright.edu>]

I have data composed of yearly jaw xray measurements over a 20 year
period.  I wish to do some growth curve analyses of these data so I plan
to use -gllamm- but I was wondering, is there a way to get the mean peak
velocity and the mean peak height of the growth curve?
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