[R-sig-eco] Is there a package that does a G test?

[Reynaldo Linares-Palomino]

Hi Jim, there is code, with examples, on Peter Hurd's webpage that does what you want:

http://www.psych.ualberta.ca/~phurd/cruft/


Cheers,

Reynaldo
 ---------------------------------------------------
Reynaldo Linares-Palomino
Albrecht-von-Haller-Institute for Plant Sciences
Department of Systematic Botany
University of Göttingen
Untere Karspüle 2, 37073-Göttingen, Germany


Bosques Estacionalmente Secos del Neotropico
http://www.geocities.com/bosquesecos/
http://rbg-web2.rbge.org.uk/dryforest/database.htm



----- Original Message ----
Date: Wed, 16 Jul 2008 19:26:39 -0400
From: James Milks <james.milks at wright.edu>
Subject: [R-sig-eco] Is there a package that does a G test?
To: r-sig-ecology at r-project.org
Message-ID: <B29B41AD-0EDF-44A5-8C19-E784F0614D1C at wright.edu>
Content-Type: text/plain; delsp=yes; format=flowed; charset=US-ASCII

I have data with the following structure:

Site  Species  #Vines  DBH
1        1        0    12.3
1        1        4    17
1        2        12    48
1        3        1    24
1        3        0    19
2        1        2    15.8
2        2        4    20
2        3        3    30
2        2        9    60
3        3        13    23
3        2        2    44
3        1        0    13

I'm interested in doing a G test to test for differences between  
sites, species, and species within sites using (#Vines / DBH) as the  
dependent variable.  Are there any packages that perform a G test on  
that sort of data?

Thanks in advance.

Jim Milks

Degree Candidate
Environmental Sciences Ph.D. Program
Wright State University
Dayton, OH 45435


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