Re: [R] Clustering with ordinal data

2010-10-19 Thread Michael Bedward
Hello Steve, > I've been asked to help evaluate a vegetation data set, specifically to > examine it for community similarity. The initial problem I see is that the > data is ordinal.   At best this only captures a relative ranking of > abundance and ordinal ranks are assigned after data collection

Re: [R] Clustering with ordinal data

2010-10-19 Thread Steve_Friedman
10 02:23 cc PMr-help@r-project.org Subject Re: [R] Clustering with or

Re: [R] Clustering with ordinal data

2010-10-19 Thread Phil Spector
Steve - Take a look at daisy() in the cluster package. - Phil Spector Statistical Computing Facility Department of Statistics UC Be

[R] Clustering with ordinal data

2010-10-19 Thread Steve_Friedman
Hello I've been asked to help evaluate a vegetation data set, specifically to examine it for community similarity. The initial problem I see is that the data is ordinal. At best this only captures a relative ranking of abundance and ordinal ranks are assigned after data collection.I've been

Re: [R] Clustering with ordinal data

2008-02-15 Thread Gavin Simpson
On Fri, 2008-02-15 at 10:45 -0800, Tim Smith wrote: > Hi, > > Is there any clustering package in R that can cluster with ordinal data? > > thanks! daisy() in recommended package 'cluster' can generate dissimilarities for ordinal data using Gower's general (dis)similarity coefficient for mixed da

[R] Clustering with ordinal data

2008-02-15 Thread Tim Smith
Hi, Is there any clustering package in R that can cluster with ordinal data? thanks! Be a better friend, newshound, and [[alternative HTML version deleted]]