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st: MDS question
From
"Data Analytics Corp." <[email protected]>
To
Stata Listserve <[email protected]>
Subject
st: MDS question
Date
Fri, 26 Mar 2010 17:17:28 -0400
Hi Stata,
I have a client who wants an MDS plot of consumers' similarity ratings
of 26 products. The ratings come from a familiarity question in a
survey in which the consumers were asked to group similar products. I
can easily handle this. But then he wants to have another MDS plot for
yet another similarity rating on awareness of the products overlayed on
top of the first. Basically to show how brands are related when people
are familiar and aware of them. I don't think I can do this with the
MDS commands (I plan to use msdmat with a lower triangle of the data).
Is there a way I can do two separate MDS analyses and then graphically
plot the second on the same axes as the first? I know this can be done
in R by basically retaining the axes from the first plot when the second
plot is called. Can I do this in Stata? Is there any way to overlay
one MDS plot on another? Any help or suggestion are appreciated.
Thanks,
Walt
--
________________________
Walter R. Paczkowski, Ph.D.
Data Analytics Corp.
44 Hamilton Lane
Plainsboro, NJ 08536
________________________
(V) 609-936-8999
(F) 609-936-3733
[email protected]
www.dataanalyticscorp.com
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