R help - Jan 2007 - graph results of logistic regression

I would like to graphically represent the results from a matched-pairs
logistic regression. I am looking to represent each variable seperately in
a graph, displaying the probability of selection for each. My study is
looking at habitat selection in turtles so I am comparing habitat
variables to turtle locations compared to paired random points
(differences in habitat).

Consulting previous questions in R help archives I found a somewhat
similar request in september of 2005.
A response suggested some representation ideas using R code in a Bulletin
of the ESA 
<http://www.esapubs.org/bulletin/backissues/086-1/bulletinjan2005.htm#et>
(with a correction included in Erratum from volume 86(2)
http://www.esapubs.org/bulletin/backissues/086-2/et_bulletin86_2print.pdf 
As explained the code only tries to ?efficiently? represent raw data in
the traditional logistic plot that most ecologist are familiar with.
However the code which is plot.logi.hist is not recognized when I tried
and I could not find it in any of the packages. I am wondering how to run
this code (ie- which package it might be in).

Any help would be greatly appreciated.

The code of the function plot.logi.hist is defined in appendix A of the
article you referred to.

Cheers,

Thierry
------------------------------------------------------------------------
----

ir. Thierry Onkelinx

Instituut voor natuur- en bosonderzoek / Reseach Institute for Nature
and Forest

Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
methodology and quality assurance

Gaverstraat 4

9500 Geraardsbergen

Belgium

tel. + 32 54/436 185

Thierry.Onkelinx op inbo.be

www.inbo.be 

 

Do not put your faith in what statistics say until you have carefully
considered what they do not say.  ~William W. Watt

A statistical analysis, properly conducted, is a delicate dissection of
uncertainties, a surgery of suppositions. ~M.J.Moroney

-----Oorspronkelijk bericht-----
Van: r-help-bounces op stat.math.ethz.ch
[mailto:r-help-bounces op stat.math.ethz.ch] Namens mcarr052 op uottawa.ca
Verzonden: zaterdag 13 januari 2007 21:37
Aan: r-help op stat.math.ethz.ch
Onderwerp: [R] graph results of logistic regression

I would like to graphically represent the results from a matched-pairs
logistic regression. I am looking to represent each variable seperately
in
a graph, displaying the probability of selection for each. My study is
looking at habitat selection in turtles so I am comparing habitat
variables to turtle locations compared to paired random points
(differences in habitat).

Consulting previous questions in R help archives I found a somewhat
similar request in september of 2005.
A response suggested some representation ideas using R code in a
Bulletin
of the ESA 
<http://www.esapubs.org/bulletin/backissues/086-1/bulletinjan2005.htm#et
>
(with a correction included in Erratum from volume 86(2)
http://www.esapubs.org/bulletin/backissues/086-2/et_bulletin86_2print.pd
f 
As explained the code only tries to "efficiently" represent raw data
in
the traditional logistic plot that most ecologist are familiar with.
However the code which is plot.logi.hist is not recognized when I tried
and I could not find it in any of the packages. I am wondering how to
run
this code (ie- which package it might be in).

Any help would be greatly appreciated.

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