st: graph legend overlay

[Bill Rising <brising@louisville.edu>]

Hello people,

Is there some way to overlay legend items on each other?

Here's the deal:

I've made a combination of two -rcap- graphs together with two -scatter- 
plots superimposed, and the symbols have the value of a 3rd variable 
inside the symbol. Here's a text version:

        __
   |___/22\_________|
   |   \__/         |

Now, I'd like to be able to at least have a bar with a symbol in the 
legend, properly labeled, along with a note about the number in the 
middle.

Unfortunately, I cannot see how to superimpose legend items as easily as 
superimposing graph items. The best I seem to be able to do is to make 
the -symysize- and -rowgap- very small (negative works like very small) 
and get the bar and the symbol close.

Here are the other unsuccessful attempts:

Calling both the symbol and the bar item 1 within their various graph 
subcommands. Stata is not fooled, however, and instead merges their 
directives for the first of the items.

The code for the graphs follows at the bottom, for those who are 
interested. 

Thanks in advance,

Bill

---------------------------- cut here ---------------------------- 
#delimit ;
graph twoway 
	(rcap comfort_hi comfort_low q_by_comfort_pre 
	   if when==0 & year4==0, 
	       horizontal 
	       ylabel(1/20, valuelabel angle(horizontal)) 
	       blcolor(blue)
	       ) 
	(rcap comfort_hi comfort_low q_by_comfort_pre 
	   if when==1 & year4==0, 
	       horizontal 
	       blcolor(dkgreen*.75)
	       )
	(scatter q_by_comfort_pre comfort_avg
	    if when==0 & year4==0
	    , mlab(exposed_pct) mlabpos(0) mlabsize(vsmall) mlabcolor(black)
	      msymbol(O) msize(large) mcolor(yellow)
	      )
	(scatter q_by_comfort_pre comfort_avg
	    if when==1 & year4==0
	    , mlab(exposed_pct) mlabpos(0) mlabsize(vsmall) mlabcolor(black)
	      msymbol(O) msize(large) mcolor(orange)
	     )
	, ytitle("<- More Difficult ... Less Difficult ->") xtitle("Comfort 
Level")
	scheme(s1rcolor) 
	legend(order(1 2 3 4) label(1 "") label(2 "") label(3 "Before") label(4 
"After") 
	       symysize(-0.5) rowgap(-0.5) )
	       ;
---------------------------- cut here ---------------------------- 
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