How to merge two graphs in STATA into one with A,B labels?

[Phuc Nguyen]

I am reading a paper from PNAS.

Their figure 1 is as below

Normally, when running the graph from STATA, I have the two separate graphs: A and B

I am wondering is there any way to mark the A and B symbols at the top left of two graphs as the Figure 1.

And how to merge the two graphs together in one figure?

[Bruce Weaver]

Have you looked at the help for -graph combine-?

[Nick Cox]

On the detail of the "label", consider this sequence.

. sysuse auto, clear
(1978 automobile data)

. scatter mpg weight

. scatter mpg weight, caption("A", pos(11) size(large))

If you're trying to put a lot of stuff at the top, things can get fiddly. For example, such a caption won't by default appear above any subtitle().

[Phuc Nguyen]

Have you looked at the help for -graph combine-?

Thanks Bruce, I did look at it and I got my general answer.