st: lorenz curve

[ag86264@studbocconi.it]

Hello,
Is it possible to construct a lorenz curve of a varname computed whit a 
population ordered in descending order of varname? Then, is it possible 
create a graph with both these curves?
Thank a lot
Claudia

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/