How edit coefplot

[Katherin Tangarife]

Hello.

I have a event study and I do not have data between january 2020 (Ene-20) and september 2020 (Sep-20), I wanto to put a bar in this period but do not know how edit it. The code used was:

coefplot, vertical keep(*tratado*period*) xlabel(,labsize(small) angle(vertical)) yline(0) xline(13.5)

[Andrew Musau]

coefplot is from SSC (FAQ Advice #12). Please provide a reproducible example (see details in the referenced FAQ Advice).