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Re: st: working with similarity matrices


From   "Emmanuel F. Koku" <emmanuel.koku@utoronto.ca>
To   statalist@hsphsun2.harvard.edu, Alan Neustadtl <alan.neustadtl@gmail.com>
Subject   Re: st: working with similarity matrices
Date   Fri, 25 Feb 2005 09:03:06 -0500

Hi, you can also write to the socnet listserv or ucinet usersgroup at yahoo.   
Info about both resources and others can be found at www.insna.org.

cheers - emmanuel
=============================================
Emmanuel F. Koku
emmanuel.koku@utoronto.ca               
Ph.D Candidate and Research Associate
Centre for Urban and Community Studies
University of Toronto
455 Spadina Avenue
Toronto, Canada M5S 2G8
Tel: 1(443)465-4653
Fax: 1(208)977-0232
========================================


Quoting Alan Neustadtl <alan.neustadtl@gmail.com>:

 You might have a better experience using a software package designed
 especially for your situation.  Both Ucinet (www.analytictech.com) and
 Pajek (http://vlado.fmf.uni-lj.si/pub/networks/pajek/) can do what you
 are asking (and more).  Older versions of Ucinet are free, the latest
 version can be used for a limited time for free, and Pajek is also
 free.  Both are social network analysis applications.
 
 If you decide to use Ucinet and need some help to get going, let me know.
 
 Best,
 Alan
 
 
 On Thu, 24 Feb 2005 22:55:32 -0500, Clarence C. Gravlee
 <cgravlee@fsu.edu> wrote:
 > Statalisters,
 > 
 > I have a standard case-by-variable profile matrix like this
 > 
 >   A B C D E F
 > 1
 > 2
 > 3
 > 4
 > 
 > and want to compute a case-by-case similarity matrix like this
 > 
 >   1 2 3 4
 > 1
 > 2
 > 3
 > 4
 > 
 > In this instance, I want to use Jaccard's coefficient of similarity,
 > though at other times I'll want to use another similarity measure.  I
 > need to be able to save this similarity matrix so that I can work with
 > it using multidimensional scaling, principal components analysis, etc.
 > Is this sort of thing possible in Stata?
 > 
 > It appears that several people have asked related questions about
 > working with similarity matrices in the last couple of years, and no one
 > seems to have gotten very far.  See, for example
 > 
 > http://www.stata.com/statalist/archive/2004-07/msg00605.html
 > http://www.stata.com/statalist/archive/2005-02/msg00040.html
 > 
 > Is part of the issue that Stata assumes users would want to work with
 > similarities only as part of cluster analysis?
 > 
 > As is probably apparent from my question, I don't have any programming
 > experience in Stata.  I'm willing to learn, but given my needs, I wonder
 > if Stata is the best language to invest in learning, or whether I ought
 > to look elsewhere (like R).  I'd welcome your suggestions.
 > 
 > Thanks for your sharing your time and expertise.
 > 
 > Lance Gravlee
 > --
 > Clarence C. Gravlee, Ph.D.
 > Assistant Professor
 > Department of Anthropology
 > Florida State University
 > Tallahassee, FL 32306-7772
 > (850) 644-4754
 > (850) 645-0032 FAX
 > cgravlee@fsu.edu
 > http://lance.qualquant.net/
 > 
 > Research Associate
 > Center for Demography and Population Health
 > 
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 >
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