I have been wondering about the same thing recently. Is calculating an R2
useful for glms with poisson distribution useful? The standard glm summary
outputs p-values and an AIC for the overall model, but there isnt anything that
tells you how well the model explains the variation in the data. I
Hello, Is there a diversity index similar to the 'contribution diversity
approach' contribdiv()in vegan that reflects only the compositional
'distinctiveness' of a site within a region. contribdiv()combines
'distinctiveness' with a within-site diversity measure such as richness, I on
the
-Original Message-
From: psoly...@gmail.com [mailto:psoly...@gmail.com] On Behalf Of Peter Solymos
Sent: Wednesday, December 01, 2010 1:36 PM
To: Pekin, Burak K
Cc: r-sig-ecology@r-project.org
Subject: Re: [R-sig-eco] Distinctiveness and contribdiv( )
Burak,
Not exactly clear what you want
Thanks Jari, so in essence I would be doing something like a PERMANOVA.
-Original Message-
From: Jari Oksanen [mailto:jari.oksa...@oulu.fi]
Sent: Wednesday, November 24, 2010 5:35 PM
To: Pekin, Burak K; 'Andy Rominger'
Cc: 'r-sig-ecology@r-project.org'
Subject: Re: [R-sig-eco] relative
]
Sent: Wednesday, November 24, 2010 5:43 PM
To: Pekin, Burak K
Cc: 'r-sig-ecology@r-project.org'
Subject: Re: [R-sig-eco] relative compositional dissimilarity among sites
against a continuous variable
On 25/11/10 00:37 AM, Pekin, Burak K bpe...@purdue.edu wrote:
Thanks Jari, so in essence I
...@gmail.com [mailto:romu...@gmail.com] On Behalf Of Roman Lu¹trik
Sent: Wednesday, November 24, 2010 6:10 PM
To: Pekin, Burak K
Cc: Jari Oksanen; r-sig-ecology@r-project.org
Subject: Re: [R-sig-eco] relative compositional dissimilarity among sites
against a continuous variable
I would venture a guess
Fixed it. It was a problem with my data.
Thanks,
Burak
From: romu...@gmail.com [mailto:romu...@gmail.com] On Behalf Of Roman Lu¹trik
Sent: Wednesday, November 24, 2010 6:10 PM
To: Pekin, Burak K
Cc: Jari Oksanen; r-sig-ecology@r-project.org
Subject: Re: [R-sig-eco] relative compositional
Thank you for that hint. Very useful to know.
Is there a way to also replace all cells with a particular numeric value (e.g.
every cell with 76) with another number or letter?
_
Burak K. Pekin, PhD
Postdoctoral Research Associate
Department of Forestry and
