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st: RE: Continous to categorical variable


From   "Maarten Buis" <M.Buis@fsw.vu.nl>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Continous to categorical variable
Date   Wed, 21 Feb 2007 17:48:18 +0100

--- Mentzakis, Emmanouil wrote:
> I have a continous variable (i.e. income) and I would like to transform
> it into a categorical one (e.g 5 categories/levels or more).
> 
> I would like to ask if there is any way that I can ask stata to create
> this variable deciding the appropriate cut-off points automatically so
> that the categories follow aproximately a normal distrubution or they
> are of equal size.

For the latter have a look at -help egen- and look at the cut function. 
For the former: how would you expect a variable to become more like 
a normal distribution by making it coarser?

Hope this helps,
Maarten

-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology 
Vrije Universiteit Amsterdam 
Boelelaan 1081 
1081 HV Amsterdam 
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434 

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------



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