outreg2 adding information on list of units in the regression

[Anne-Claire Jo]

Hello,
it's just a general question: i tried to add information on the list of countries used in the regression using outreg2 command, but I only succeeded on number of countries, not the list.
I used

levelsof country if e(sample)
local n_countries = `r(r)'

and put

outreg2 ... addtext(Countries, `n_countries')

I tried to find previous posts regarding this question, but I couldn't find it..
Someone could help me, please?

[Nick Cox]

I know almost nothing about outreg2 (from SSC, as you are asked to explain) but for this question you don't need posts on Statalist.

The help for levelsof explains saved results: you seem to need to use r(levels) not r(r).

That said, I've not tried using its output with outreg2.

. sysuse auto, clear
(1978 automobile data)

. levelsof rep78
1 2 3 4 5

. ret li

scalars:
                  r(N) =  69
                  r(r) =  5

macros:
             r(levels) : "1 2 3 4 5"

[Anne-Claire Jo]

Nick Cox Thanks a lot for your reply.
I changed to `r(levels)', however I have the following error:

`"TTT"'
10 13 16 20 21 22 24 26 27 28 29 31 45 49 55 58 61 62 69 72 73 77
invalid '13'
r(198);

do you have any insights with this error?

[Nick Cox]

Sorry to disappoint, but no. The distinction I made is strong for me. levelsof I think I understand, as I first wrote it. outreg2 I don't think I have ever used, so I stop there.

[Anne-Claire Jo]

or is there any other command to solve this issue with using other command instead of outreg2?

[Nick Cox]

Again, I can't comment helpfully on that.

But many people here use outreg2 or one of the alternatives and they may be able to comment.