st: Create a variable containing the means of subgroups

[Claude Francoeur <claude.francoeur@hec.ca>]

Hello,

I would like to create a variable that would contain the means of 
subgroups of my sample :

mean yhat, over(demo1)

This command produces a table of means of yhat for the 6 subgroups of 
"demo1". I would like to create a variable that would contain these 6 
values.

Thank you for your help.

Claude


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