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RE: st: Count multiple observations / weight in Scatter


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   statalist@hsphsun2.harvard.edu
Subject   RE: st: Count multiple observations / weight in Scatter
Date   Fri, 17 Sep 2010 11:22:23 +0200

<>
Have you had a look at the -duplicate- suite of commands?

HTH
Martin

-original message-
Subject: st: Count multiple observations / weight in Scatter
From: "Rilke Rainer Michael" <rilke@wiso.uni-koeln.de>
Date: 17-09-2010 10:58

Dear Statalist-Readers,

I am searching quite a while for a specific problem and I am not sure if there exists a proper work-around.

I have data where for example one subject indicates two different variables, lets say X and Y. 

Id            X            Y
1             10           19
2             12           19
3             10           19

I now want to create a variable lets say freq which counts the number of multiple duplicate observation. I don't know if I am expressing myself right, On the basis of the above table it should look like this:

Id            X            Y             count
1             10           19           2
2             12           19           1
3             10           19           2

In the end the count variable will serve as an weight for this observations in a scatter plot. By doing this the dot size in the scatterplot will increase. Maybe someone can help me with this little problem.

Kind Regards,
Rainer

-----------------------------------------------------------------------------------------------------
Dipl.-Vw. Rainer Michael Rilke

Department of Corporate Development and Business Ethics
University of Cologne
Albertus-Magnus-Platz | 50923 Köln, Germany
Tel: +49 (0) 221 470 1843 | Fax: +49 (0) 221 470 1849
rainer.rilke@uni-koeln.de | www.codebe.uni-koeln.de



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