[I am using STATA 15.0] I am trying to run ANCOVA regression and store the results using eststo and esttab. I have three different dependent variables (Xb Yb Zb), three different independent variables (Xf1 Yf1 Zf1), and a set of control variables (A B C D). My 1st regression specification is: eststo: reg Xb Xf1 A B C D, cluster (id). My 2nd regression specification is: eststo: reg Yb Yf1 A B C D, cluster (id), and the 3rd one is: eststo: reg Zb Zf1 A B C D, cluster (id). I was trying to run 3 regressions using loop; however, I failed. Can anyone please help me with how should I write the loop command? Thank you in advance.