st: Levelsof for more than one Variable

[Roberto Liebscher <roberto.liebscher@ku.de>]

I have two variables both containing string values. I would like to get 
all unique values (not the number of unique values) from these two 
variables jointly.
For example if I enter

levelsof var1, locals(loc1)
levelsof var2, locals(loc2)

I obtain all unique values of var1 and all unique values of var2. But at 
the end I would like to have one local containing only unique values in 
loc1 AND loc2.
Is there anyone who can help me with this?

Thanks!

Roberto

--
Roberto Liebscher
Catholic University of Eichstaett-Ingolstadt
Department of Business Administration
Chair of Banking and Finance
Auf der Schanz 49
D-85049 Ingolstadt

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