Add trend line to bar graph

[Basil Schüpbach]

Hi

I would like to add a trend line to a bar graph like this

I use the following code

graph bar (mean) alpha_10sq, over(portfolios) bar(1, color(gs0)) ///
ylab(-0.5(0.2)0.5, nogrid)

I tried it with the "twoway" function, but I think "lfit" is not compatible with "grahp bar".

Any idea?

Many thanks

[Scott Merryman]

You can use twoway bar.

. sysuse citytemp, clear
(City Temperature Data)

. qui sum tempjuly

. gen deviation = tempjuly - r(mean)
(2 missing values generated)

. collapse devi, by(div)

. sort dev

. gen id = 10 -_n

. twoway bar devi id, barw(.5)  fcolor(*.1) || lfit dev id, lw(medthick) || , legend(off)