geometric mean regression

Hi All

 

I have a dataset and I have been asked to generate geometric means from the
linear regression for different groups (2 groups). 

In fact my data is repeated measures, and I intend to use a mixed-effects
regression model with repeated measures. But I thought I can learn how to do
this for a simple geometric mean regression, I should be able to translate
this into a mixed model.

 

Any help would be greatly appreciated!

 

Thanks

 

Ahmad