Hello all,

I will please like an answer to this question. When calculating Average Treatment Effect (ATE) and Average Treatment Effect on the Treated (ATET) I believe results should show different number of observation for each estimate as one is on the general population (ATE) and the other is on the treated (ATET). I however find that both estimates show the same number of observation. How do I get the number of observation for estimates on the treated (ATET)? An example is shown in page 139 in the Stata manual. Pls follow this link. https://www.stata.com/manuals13/te.pdf.
Many thanks.