- Original Message
From: Xiaogang Su
To: Tim Clark
Cc: r-help@r-project.org
Sent: Wed, May 19, 2010 9:42:40 AM
Subject: Re: [R] Generating all possible models from full model
A couple of years ago, I wrote a function for doing this. It can be
found in the following file:
http://pegasus.cc.ucf.edu
Hi, one approach is document below. The function should work with any
regression function that follows the syntax of lm (others will need
adjustments). Note that you would have to create the interactions terms by
hand (which is no big deal if there are just few). Note also that this
approach can b
On 05/19/2010 01:39 PM, Ben Bolker wrote:
Frank E Harrell Jr Vanderbilt.Edu> writes:
Please read the large number of notes in the e-mail archive about the
invalidity of such modeling procedures.
Frank
I'm curious: do you have an objection to multi-model averaging
a la Burnham, Anderso
A couple of years ago, I wrote a function for doing this. It can be
found in the following file:
http://pegasus.cc.ucf.edu/~xsu/CLASS/STA4164/mt4-2009.doc
I also pasted a copy below. Hope you find it useful. -XG
#
# ALL POSSIBLE REGRESSIONS
#
# Th
> Tim
>
>
> Tim Clark
> Department of Zoology
> University of Hawaii
>
> --- On *Wed, 5/19/10, Tal Galili * wrote:
>
>
> From: Tal Galili
> Subject: Re: [R] Generating all possible models from full model
> To: "Tim Clark"
> Cc: r-help@r-project.o
Frank E Harrell Jr Vanderbilt.Edu> writes:
>
> Please read the large number of notes in the e-mail archive about the
> invalidity of such modeling procedures.
>
> Frank
>
I'm curious: do you have an objection to multi-model averaging
a la Burnham, Anderson, and White (as implemented in the
My apologies for rushing to write 7! , that one was not thought out at all.
Tal
Contact
Details:---
Contact me: tal.gal...@gmail.com | 972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www
Tal Galili gmail.com> writes:
>
> On Wed, May 19, 2010 at 7:38 AM, Tim Clark yahoo.com> wrote:
>
> > Is there a function that will allow me to run all model iterations if I
> > specify a full model?
> >
> >
> m1234567<-glm.convert(glm.nb(mantas~site*year+cosmonth+sinmonth+
> coslunar+sinlun
Try the MuMIn package from r-forge.
Ben Bolker
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-conta
ll
> the possible models long-hand given a full model with all desired terms,
> where some terms may have interactions and others don't.
>
>
>
>
>
>
> Tim Clark
> Department of Zoology
> University of Hawaii
>
> --- On *Tue, 5/18/10, Tal Galili * wrote:
>
On 05/18/2010 11:38 PM, Tim Clark wrote:
Is there a function that will allow me to run all model iterations if I specify
a full model? I am using information criteria to choose between possible
candidate models. I have been writing out all possible model combinations by
hand, and I am always
Do you mean only all of the FIRST order models (that is, without
interactions) ?
Contact
Details:---
Contact me: tal.gal...@gmail.com | 972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
ww
Is there a function that will allow me to run all model iterations if I specify
a full model? I am using information criteria to choose between possible
candidate models. I have been writing out all possible model combinations by
hand, and I am always worried that I am missing models or have m
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