1. Yes they are inverted! It was a tuypo which I think i never correct on my own computer
The very last column should be the Nr of Treated units.
2. What happens is that when using panel data, I was originally reporting the number of panel units not the number of observations. Which I change since, because people wanted to see how many observations were being used in the command.
The detailed number of observations e(gtt) was an attempt to provide more information on the sample sizes , specially when one has missing data or repeated crossection.
For the other question. I think the difference affects only if you are interested in ATTGTs before treatment. (pre-treatment)
So the default with csdid and DID are the same. However, if you want the new feature, you need to use the option -long-. This calculates long pseudo treatment effects.
If you are interested on the actual formulas , check pg 34 on my slides here
https://friosavila.github.io/playing...did_csdid.html
Fernando
The very last column should be the Nr of Treated units.
2. What happens is that when using panel data, I was originally reporting the number of panel units not the number of observations. Which I change since, because people wanted to see how many observations were being used in the command.
The detailed number of observations e(gtt) was an attempt to provide more information on the sample sizes , specially when one has missing data or repeated crossection.
For the other question. I think the difference affects only if you are interested in ATTGTs before treatment. (pre-treatment)
So the default with csdid and DID are the same. However, if you want the new feature, you need to use the option -long-. This calculates long pseudo treatment effects.
If you are interested on the actual formulas , check pg 34 on my slides here
https://friosavila.github.io/playing...did_csdid.html
Fernando
Comment