How to draw a graph like this?

[River Huang]

Dear All, Does anyone know how to draw a graph like this.

However, no data available at this moment.

[Scott Merryman]

See the last example in help section for graph combine

For example:

sysuse auto,clear
lowess price mpg, name(gr1,replace) xscale(off) yscale(off) note("") title("")
twoway kdensity price, name(gr2,replace) horiz fxsize(25) xscale(off) ytitle(Price)
twoway kdensity mpg, name(gr3,replace)  fysize(20) yscale(off) xtitle(MPG)
graph combine gr2 gr1 gr3, hole(3) imargin(0 0 0 0 )

[River Huang]

Dear Scott, Thank you so much for the wonderful illustration.