st: show distribution @ top of graph

[Kit Baum <baum@bc.edu>]

Fred said
In older versions of Stata there used to be a way to display a  
distribution
as a second plot at the top of the graph. Is there still a way to do  
that
in Stata 9, perhaps as an overlay? I couldn't find information on  
this in
my searches.


[g] graph combine shows how to create one of the graphs on the Stata  
9 poster: a scatterplot with histograms of the X and Y as borders.  
The enclosed does not do a perfect job, but with some tweaking...


sysuse lifeexp,clear
gen loggnp = log10(gnppc)
su loggnp,mean
local minx =`r(min)'-1
local maxx =`r(max)'+1
kdensity loggnp, saving(kd,replace) xsca(alt) xlabel(,grid) fysize 
(25) ///
xsca(range(`minx'/`maxx')) yline(0,lcolor(black)) nodraw
scatter lexp loggnp, saving(yx,replace) xsca(range(`minx'/`maxx')) xla 
(,grid) nodraw
graph combine kd.gph yx.gph, col(1) imargin(0 0 0 0) graphregion 
(margin(l=22 r=22)) ///
saving(fred,replace)



Kit Baum, Boston College Economics
http://ideas.repec.org/e/pba1.html


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