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Re: st: ylines with two y-axes

From   Maarten Buis <>
Subject   Re: st: ylines with two y-axes
Date   Wed, 25 Jul 2012 14:11:25 +0200

On Wed, Jul 25, 2012 at 2:01 PM, Ivica Rubil wrote:
> Below is my code for a graph with two y-axes:
> twoway (line gic_L p, sort yaxis(1) lcolor(red) yline(`a_mean')) || ///
>        (line gic_R p, sort yaxis(2) lcolor(blue) yline(`g_mean'))
> But, the trouble is that Stata gives me a graph on which both ylines are
> associated with the same axis. So, how can I specify which yline refers
> to which of the two y-axes?

*------------------ begin example --------------------
sysuse auto, clear
twoway scatter price mpg , yaxis(1)                ///
               yline(5000, lcolor(red) axis(1)) || ///
       scatter headroom mpg, yaxis(2)              ///
               yline(2, lcolor(blue) axis(2))
*------------------- end example ---------------------
(For more on examples I sent to the Statalist see: )

Hope this helps,

Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
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