xtreg2way twfem
Implements An Algorithm to Estimate the Two-Way Fixed Effect Model Use xtreg2way (In) With R Software
https://www.youtube.com/watch?v=N7gYYV98FO0
Implements An Algorithm to Estimate the Two-Way Fixed Effect Model Use twfem With STATA 18
https://www.youtube.com/watch?v=EqRPbOBVMdI