[R-sig-eco] Help obtaining f values

2014-09-15 Thread Luis Fernando García 
Hello,

I am new using the R software and I am a little concerned about an
apparently easy procedure which is done in R. When I perform a GLM
analysis, I usually get the deviance, df and p values. Nevertheless, for
publishing, reviewers require the F value. Although I have looked in
several sources I have nott been able to find it, so I wanted to know if
any of you knows how to find the exact f value using the deviance, df or p
value.

Any help will be welcome and this is an example of what I get.

Thanks in advance

Analysis of Deviance Table

Model: quasipoisson, link: log

Response: Count

Terms added sequentially (first to last)


   Df Deviance Resid. Df Resid. DevFPr(F)
NULL  26 3204.6
Sex 2 6.8924 3197.7   2.2640 0.1851036
Time153.9623 3143.8  35.4513 0.0010042 **
Behaviour   4  2356.3619  787.4 387.0562 2.295e-07 ***
Sex:Time282.4917  704.9  27.0991 0.0009902 ***
Sex:Behaviour   794.4210  610.5   8.8621 0.0083508 **
Time:Behaviour  4   601.27 69.3  98.7648 1.324e-05 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

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Re: [R-sig-eco] Help obtaining f values

2014-09-15 Thread Ricardo Solar 
Well,

I may have gotten your question over-simplified, but, isn't it the F in
your table (*in bold*)?

 Df Deviance Resid. Df Resid. Dev*F*Pr(F)
NULL  26 3204.6
Sex 2 6.8924 3197.7   *2.2640* 0.1851036
Time153.9623 3143.8  *35.4513* 0.0010042 **
Behaviour   4  2356.3619  787.4 *387.0562 *2.295e-07 ***
Sex:Time282.4917  704.9  *27.0991* 0.0009902 ***
Sex:Behaviour   794.4210  610.5  * 8.8621* 0.0083508 **
Time:Behaviour  4   601.27 69.3  *98.7648* 1.324e-05 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

==
Dr. Ricardo Ribeiro de Castro Solar (Curriculum Vitœ
http://lattes.cnpq.br/9924177207371692)
Pesquisador Associado (PNPD - Capes)
Programa de Pós-Graduação em Ciências Biológicas
Visit my blog! http://photographyandconservation.wordpress.com/ / Rede
Amazônia Sustentável http://www.redeamazoniasustentavel.org
Skype: rrsolar
Universidade Estadual de Montes Claros - MG
==

On 15 September 2014 15:53, Luis Fernando García luysgar...@gmail.com
wrote:

 Hello,

 I am new using the R software and I am a little concerned about an
 apparently easy procedure which is done in R. When I perform a GLM
 analysis, I usually get the deviance, df and p values. Nevertheless, for
 publishing, reviewers require the F value. Although I have looked in
 several sources I have nott been able to find it, so I wanted to know if
 any of you knows how to find the exact f value using the deviance, df or p
 value.

 Any help will be welcome and this is an example of what I get.

 Thanks in advance

 Analysis of Deviance Table

 Model: quasipoisson, link: log

 Response: Count

 Terms added sequentially (first to last)


Df Deviance Resid. Df Resid. DevFPr(F)
 NULL  26 3204.6
 Sex 2 6.8924 3197.7   2.2640 0.1851036
 Time153.9623 3143.8  35.4513 0.0010042 **
 Behaviour   4  2356.3619  787.4 387.0562 2.295e-07 ***
 Sex:Time282.4917  704.9  27.0991 0.0009902 ***
 Sex:Behaviour   794.4210  610.5   8.8621 0.0083508 **
 Time:Behaviour  4   601.27 69.3  98.7648 1.324e-05 ***
 ---
 Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

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