Pierre Legendre has worked on spatially constrained clustering using
methods that may work for time also. That would be a place to start.

Jim

=========================
F. James Rohlf
Distinguished Professor, Stony Brook University
http://life.bio.sunysb.edu/ee/rohlf


> -----Original Message-----
> From: Classification, clustering, and phylogeny estimation
> [mailto:[log in to unmask]] On Behalf Of Shannon, William
> Sent: Monday, January 26, 2009 10:45 AM
> To: [log in to unmask]
> Subject: time series clustering
> 
> I have a new project that is intriguing and offers data I have never
> tried to cluster.
> 
> The question is whether there are hiv/aids patients treated
> differently according to their medicaid procedure codes (what was
> done to them). Procedures occur over time so  changing the
> clustering over time would seem reasonable. Hopefully we will see
> clusters of patients form based on medical interventions given, and
> stabilize as we move forward.
> 
> I have never done anything like this and wanted to know if anyone
> could point me in the right direction towards previously done work
> along this line.
> 
> Thank you
> 
> Bill Shannon, PhD
> Associate Prof. of Biostatistics in Medicine
> Washington University School of Medicine
> Director, Biostatistical Consulting Center
> 314-454-8356
> 
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