[R] Local Moran's I / Getis and Ord and Rousseauw Cluster Algorithms

Prof Brian Ripley ripley at stats.ox.ac.uk
Thu Jun 29 12:22:35 CEST 2000

> From: "Hewson, Paul" <Paul.Hewson at torbay.gov.uk>
> To: "'r-help at lists.R-project.org'" <r-help at hypatia.math.ethz.ch>
> Subject: [R] Local Moran's I / Getis and Ord and Rousseauw Cluster Algorithms
> Date: Thu, 29 Jun 2000 11:00:12 +0100
> Sorry for the repetition, unless I've got bad deja vu this questions been
> asked before but I couldn't turn up an answer on CRAN.   Is there already
> any code in existence for local dependence measures such as Moran's I or
> Getis and Ord G?

Not that I know of. S-PLUS has these in a commercial add-on (S+SpatialStats)
and so there has been little incentive for people to write and
publicize their own.

> Also, S-Plus has a number of interstingly named Cluster Algorithms based on
> some previous stand-alone fortran algorithms (agnes, daisy etc.) which have
> some interesting features (such as fuzzy clustering, and some potentially
> useful validation techniques).   Are there any major obstacles to getting
> these to run under R?

See package cluster on CRAN.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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