[R-sig-DCM] segmenting consumers after a dcm

[Data Analytics Corp.]

Good morning,

I've gotten a lot of great responses to my query about the 
segmentation.  I understand the latent class application; I do that for 
other problems.  The question now is how do I estimate a choice model in 
R using HB?  Bayesm was recommended.  I haven't looked at this yet, but 
will this estimate a logit model?  Any examples or applications someone 
can share?

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 at dataanalyticscorp.com
www.dataanalyticscorp.com
_____________________________________________________
On 2/1/2011 8:09 AM, Shan, Ming (GfK Kynetec US) wrote:
> Dear Walt,
>
>     Nowadays, it is not uncommon at all for people to conduct segmentation analysis after DCM.  But one has to run individual respondent level estimation (e.g. Hierarchical Bayes mdel) or group level estimation (e.g. Latent Class Analysis).  HB is a form of random effect model allowing each individual respondent to have varying coefficients but still "pool" the information from the others.  You would then run cluster analysis on your utilities to group respondents.  In the case of LCA, the segmentation is done while estimation is made.
>
>    Hope this makes sense and helps somewhat.
>
> Kindly,
> Ming Shan
>
> Direct:  +1 (314) 200 4499
> Mobile: +1 (314) 680 2525
>
> www.gfk-kynetec.com
>
>
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>     1. segmenting consumers after a dcm (Data Analytics Corp.)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Mon, 31 Jan 2011 14:53:26 -0500
> From: "Data Analytics Corp."<walt at dataanalyticscorp.com>
> To: r-sig-dcm at r-project.org
> Subject: [R-sig-DCM] segmenting consumers after a dcm
> Message-ID:<4D471336.2090009 at dataanalyticscorp.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi,
>
> I just completed a dcm (not a conjoint) for a client.  Now they would
> like to segment the consumers based on utilities from the model,
> claiming that they had this done for them before although they don't
> know what or how it was done.  My model had coefficients estimated
> across all consumers, not for each one separately.  I don't even think
> that makes sense to do for each individual.  Has anyone ever done
> segmentation after a dcm?
>
> 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 at dataanalyticscorp.com
> www.dataanalyticscorp.com
>
>
>
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