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Re: st: Levelsof for more than one Variable


From   Maarten Buis <maartenlbuis@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Levelsof for more than one Variable
Date   Mon, 21 Jan 2013 15:30:25 +0100

// collect the values
levelsof var1, locals(loc1)
levelsof var2, locals(loc2)

// stack the macros
// NOTICE: no "=" sign
local loc "`loc1' `loc2'"

// get rid of the duplicates
local loc : list uniq loc

For more see: -help extended_fcn- and especially -help macrolists-

Hope this helps,
Maarten

On Mon, Jan 21, 2013 at 3:02 PM, Roberto Liebscher
<roberto.liebscher@ku.de> wrote:
> 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/



-- 
---------------------------------
Maarten L. Buis
WZB
Reichpietschufer 50
10785 Berlin
Germany

http://www.maartenbuis.nl
---------------------------------
*
*   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/


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