Twoway graph with different x-axes

[Giorgio Piccitto]

Dear users,
I would like to know your opinion about an apparently simple question. I am not succeeding in saying Stata to use two different ranges and labels for the two graphs I am creating with the -twoway- command. More precisely, I am not able to set the second axis options.

The code I am using is the following:

twoway scatter origin media , by(simpt) mcolor(emidblue) xaxis(1) xscale(range(4.6 5.2))  xaxis(2) xscale(range(6.0 7.0)) || rcap lower upper origin, horiz lcolor(emidblue) scheme(s1mono)

the data:

* Example generated by -dataex-. To install: ssc install dataex
clear
input float(media lower upper) byte(origin simpt)
 4.09065 4.063758 4.117542 1 1
4.056681 4.038801 4.074561 2 1
4.000973 3.975708 4.026239 3 1
5.066667 5.024275 5.109058 1 2
5.025707 4.998073 5.053341 2 2
4.939974 4.901125 4.978823 3 2
end

Do you have any clue? Thanks a lot, best, G.

[Nick Cox]

I doubt that that's going to work even if you make it legal. This would be legal syntax (with the rest of the command):

xaxis(1 2) xscale(range(4.6 5.2) axis(1)) xscale(range(6.0 7.0) axis(2))

Your second axis range includes none of the data, but Stata never omits data from a graph because of an axis scale option.