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November 2002

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"Classification, clustering, and phylogeny estimation" <[log in to unmask]>
Date:
Tue, 12 Nov 2002 13:25:42 -0500
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"Classification, clustering, and phylogeny estimation" <[log in to unmask]>
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"F. James Rohlf" <[log in to unmask]>
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The NTSYSpc software (http://www.exetersoftware.com/cat/ntsyspc.html) can
presently go up to n = 362 for non-metric multidimensional scaling. That
limit could be changed if necessary.
-----------------------
F. James Rohlf
State University of New York, Stony Brook, NY 11794-5245
www: http://life.bio.sunysb.edu/ee/rohlf

> -----Original Message-----
> From: Classification, clustering, and phylogeny estimation
> [mailto:[log in to unmask]]On Behalf Of Dirk Meurer
> Sent: Tuesday, November 12, 2002 12:01 PM
> To: [log in to unmask]
> Subject: MDS with a 400X400 Matrix
>
>
> Dear Listmembers,
> I would like to do a MDS with a 400X400 square, symetric matrix of
> (dis)similaritys. Most MDS-Software is limited to a much smaller amount
> of variables though. I have been told, that SAS might be able to process
> the analyis I need, but this is quite inconvenient for me in terms of
> access to the software, hardware-requirements etc. Could anybody tell
> me, if there is a stand-alone program that can do MDS (preferably
> nonmetric) with a matrix of that size?
>
> Thanks a lot for your help,
> dirk
>
> P.S: My Matrix is not suitable for factor analysis and clustering does
> not produce the results I need.
>

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