L S schrieb:
> Hello,
>
> I am trying to create a simple bar graph in STATA. Suppose I am using
> the sysuse auto dataset.
>
> Q: I would like to have it so that my graph compares the variables
> turn and mpg across the dummy variable foreign. That is, on the left side
> of the graph, it should compare turn across foreign and domestic cars, and
> on the right side it should compare mpg across foreign and domestic cars.
> Right now I am typing:
>
> sysuse auto, clear
> bar graph (mean) turn mpg, over(foreign)
>
> The problem with this is that this displays the mean of turn and mpg for
> domestic cars on the left hand side, and then the mean of turn and mpg for
> foreign cars on the right hand side. Visually, this setup makes the reader
> compare turn and mpg for domestic cars, and compare turn and mpg for
> foreign cars,
> instead of the comparison I want. What I want to essentially do is to
> sort the 4 bars by foreign.
Here is a solution with reshape:
--------------------------------------
sysuse auto, clear
ren turn var1
ren mpg var2
reshape long var, i(make) j(typ)
lab val typ typ
lab def typ 1 "turn" 2 "mpg"
graph bar var, over(foreign) over(typ)
----------------------------------------
Uli
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