From palme@uni-wuppertal.de  Thu Mar 19 13:34:18 1998
From: palme@uni-wuppertal.de (Hubert Palme)
Date: Thu, 19 Mar 1998 14:34:18 +0100 (MET)
Subject: Strange Results of summary()
In-Reply-To: <199803181759.SAA06562@sophie.ethz.ch>
References: <199803181605.RAA14113@wrin27.urz.uni-wuppertal.de>
 <199803181759.SAA06562@sophie.ethz.ch>
Message-ID: <199803191334.OAA18974@wrin27.urz.uni-wuppertal.de>

Martin Maechler: 
 > >>                    berufl  
 > >>  Bureaukraft         :15  
 > >>  Guetererzeugung     : 9  
 > >>  sonstige            : 4  
 > >>  Handel              : 3  
 > >>  wissensch.-technisch: 3  
 > >>  (Other)             : 3  
 > >>  NA's                :43  
 > 
 > .....
 > 
 > >> > table(berufl)
 > >>           wissensch.-technisch Leiter Oeff. Dienst/Wirtschaft 
 > >>                              3                              0 
 > >>                    Bureaukraft                         Handel 
 > >>                             15                              3 
 > >>  Dienstleistungsgewerbe/Soldat                Gaertner/Jaeger 
 > >>                              2                              1 
 > >>                Guetererzeugung                       sonstige 
 > >>                              9                              4 
 > 
 > What's the problem? 
 > 	'(Other)' gives all the levels having (in your case) 0,1,2 observations,
 > 	which sum to 3 observations.

Do I understand you right, that the variables with low frequency are
put togehter in (other)? This should be explained to a newbie!!

- What criteria decides which variables are put into (other)?
- What kind of order do the values have? Frequency?

This is very irritating! Where can I get information about all this?

 > table() is more detailed (but doesn't report the NA's),
 >   which is the only thing to critize here:

I agree.

Thanks!

(Hmm... R is a very interesting and powerfull tool, but it's
philosophy and terminology need much accustomization for one being
familiar with SPSS & Co.)

-- 
======================================================================
Hubert Palme         Bergische Universitaet-Gesamthochschule Wuppertal
                                      Computing  Center
                                      D-42097 Wuppertal
Email: palme@uni-wuppertal.de             (Germany)
http://www.hrz.uni-wuppertal.de/hrz/personen/h_palme.html
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Strange Results of summary()
Hubert Palme