The TWINSPAN program
On Wed, 2011-04-13 at 12:13 +0200, Andres Mellado Diaz wrote:
Hi, It seems that there is no R function for TWINSPAN, but you can get the program for free here: http://www.canodraw.com/wintwins.htm Anyway, I would better use IndVal analysis (Dufrene & Legendre 1997) that you can find here for R (indicspecies package):http://sites.google.com/site/miqueldecaceres/software
Or in package labdsv under function indval(). And anyway, TWINSPAN and IndVal do very different things; the former clusters data in groups and *then* also computes indicator species values. The latter assumes that a clustering has already been performed and computes indicator species values for that clustering. G
hope this helps, Andres Yong Zhang <2010202035 at njau.edu.cn> escribi?:
Helo all, These days, when I looked into the multivariate analysis of community data, I noticed that there is a very useful classification approach named "TWINSPAN", maybe most of you already know that its full name is "Two-way indicator species analysis", and the program has the same name---TWINSPAN. Could any one tell me whether this program is for free? And when and how could get one? Any hint or suggestion from you will be greatly appreciated. Thanks very much for your time and answer. All the best, Yong 2011-04-13 ZHANG Yong Lab of aquatic insects & stream ecology Dept.of Entonology, Nanjing Agricultural University Nanjing, 210095,China Phone number: (+86) -25-84395241 E-mail:2010202035 at njau.edu.cn
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