Secondary axis and adding texts to margins plot

[Olubunmi Adebiyi]

Hi everyone.

Can someone please guide me through how to make this margins plot more visible, (probably making 'Outcome 4' a secondary y-axis) and also adding texts to the graphs(e.g p=0.01)?
graphstatlist.gph

mlogit mental c.year i.agecat i.sex
margins
sort year
margins, at(year=(2012(2)2021))
marginsplot, name(graph1, replace)

* Example generated by -dataex-. For more info, type help dataex
clear
input float(mental year agecat sex)
1 2012 3 1
4 2012 1 2
4 2012 0 2
4 2012 0 2
4 2012 1 1
4 2012 1 1
4 2012 1 1
4 2012 0 1
4 2012 3 2
3 2012 1 1
4 2012 1 2
4 2012 2 2
4 2012 0 2
4 2012 3 2
4 2012 0 2
4 2012 0 1
4 2012 0 2
4 2012 2 2
4 2012 1 2
4 2012 3 2
4 2012 1 1
4 2012 3 2
4 2012 0 2
4 2012 2 1
4 2012 3 1
4 2012 2 1
4 2012 3 2
4 2012 2 2
4 2012 3 1
4 2012 1 1
4 2012 3 1
4 2012 1 1
4 2012 2 2
4 2012 3 2
4 2012 0 2
4 2012 2 2
4 2012 3 1
4 2012 0 2
4 2012 2 1
4 2012 3 2
4 2012 3 2
4 2012 3 2
4 2012 3 2
4 2012 1 1
4 2012 3 1
4 2012 1 2
4 2012 2 2
4 2012 1 1
4 2012 2 2
2 2012 3 2
end

[Andrew Musau]

In the future, please upload images in PNG format as advised in FAQ Advice #12. You should probably graph the margins separately and then combine using gr combine. Having 3 lines correspond to one y-axis and one line to a second y-axis in the same graph will just cause confusion.

mlogit mental c.year i.agecat i.sex
estimates store m1
margins, at(year=(2012(2)2021))  predict(outcome(1)) predict(outcome(2)) predict(outcome(3))
marginsplot, saving(gr1, replace)
est restore m1
margins, at(year=(2012(2)2021))  predict(outcome(4))
marginsplot, saving(gr2, replace)
gr combine gr1.gph gr2.gph

For adding text, consider:

sysuse auto, clear
mlogit rep78 mpg displ
margins, atmeans
set scheme s1mono
marginsplot, xtitle("") plotopts(text(.5 2 "{it: p}<0.01"))

where the highlighted numbers specify where the text is placed (the number in blue corresponds to the y-axis value and the number in red, the x-axis value).

Res.:

[Olubunmi Adebiyi]

Good evening Prof Musau,
Thank you so much for your correction and for your help. The codes worked perfectly. I am so happy, I v been working on it for so many days without a solution.
Thank you so much.