Yline over graph and not behind

[Marine Jouvin]

Hi,

I'm trying to make a very basic graph bar with an yline. See the code below for a reproducible example:

    sysuse auto
    dataex make price mpg rep78 in 1/5
    graph bar price, over(foreign) yline(4000, lcolor(red))

Here is the graph I get :


I want the yline to be over the bars, not behind it. I've tried adjusting the opacity, but it doesn't work.

Any idea?

[Nick Cox]

It's a matter of Stata graphics principles that added lines are always laid down before any data elements.

One way to get round this is to do something quite different.

How closely your example is related to what you really want to do only you can say, but although it seems a small difference cosmetically, your problem calls for quite different code, unless I am missing a simple trick. Consider

sysuse auto, clear
egen mean_price = mean(price), by(foreign)
twoway bar mean_price foreign, xla(0 1, valuelabel) base(0) barw(0.6) || function 4000, range(-0.4 1.4) lcolor(red) legend(off) yla(0(1000)7000) ytitle(Mean price (USD))