[R] Olmstead-Tukey Diagram

Bert Gunter gunter.berton at gene.com
Tue Oct 23 15:57:58 CEST 2012

Well then,,,

On Tue, Oct 23, 2012 at 2:03 AM, Evelina <eve.giotta at gmail.com> wrote:
> Hi everyone,
> I am Evelina and i have just joined the forum and hope to be able to support
> soembody as well as finding some help for my stats problem.

Start by ditching Nabble and join and post from the r-help mailing
list. Go to the CRAN website to do this. Many (most?) R-help
participants do not use Nabble and will lose context in posts from it.

Next, read and follow the posting guide. You have failed to follow its
instructions to provide code and preferably data (via ?dput), so it
will be difficult or impossible for people to divine  what it is that
you "expect."

Asking good questions that people can help you with takes effort and
skill, but it is common courtesy to save others wasted effort trying
to figure out what you want.

-- Bert

> I am trying to plot Frequencies against Densities of an ecological community
> using a Olmstead-Tukey diagram (O-T diagram). it is based on the Corner test
> for Association.
> I seem to undestand that the test can be run in R using the cor.test()
> function in the ade4 package, however it is not giving me what i expect,
> therefore it may be not the right function to use. Also, i would like to
> plot the data in a scatter plot with median for each variable, so that i
> have the 4 quadrants with frequent, dominant, ocasional and rare species.
> Could anyone help with some suggestions???
> Many thanks in advance
> --
> View this message in context: http://r.789695.n4.nabble.com/Olmstead-Tukey-Diagram-tp4647100.html
> Sent from the R help mailing list archive at Nabble.com.
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.


Bert Gunter
Genentech Nonclinical Biostatistics

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