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st: clustering question


From   "Data Analytics Corp." <walt@dataanalyticscorp.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: clustering question
Date   Thu, 03 Dec 2009 14:27:00 -0500

Hi,

Last year, I developed a simple three-cluster solution for a client 
based on survey data using the following:

    cluster wardslinkage q16r6 q17r5 q17r7 q17aa1r1 q17ab1r1 q17ab1r7 
q17ab1r9 vytldl, measure(Gower) name(clus01);
    cluster dendrogram clus01, xlabel(, angle(90) labsize(*0.75)) 
cutnumber(30) title("Wave 17 Cluster Analysis")
        note("Notes:" "Based on Wards linkage" "062209_1 cluster.do");
    cluster gen g = group(3), name(clus01);

The client was happy.  Now this year, the client redid the survey but 
wants to use the same cluster solution as last year, only with the data 
from the new survey.  How do I use the previous solution with new data?  
I have both Stata 10 and 11 for Windows.

Thanks,

Walt



-- 
________________________

Walter R. Paczkowski, Ph.D.
Data Analytics Corp.
44 Hamilton Lane
Plainsboro, NJ 08536
________________________
(V) 609-936-8999
(F) 609-936-3733
walt@dataanalyticscorp.com
www.dataanalyticscorp.com


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