# [R] significance of glm complete model

Ronaldo Reis Jr. chrysopa at terra.com.br
Thu Oct 25 13:49:20 CEST 2001

```Hi,
Is possible to anova function on R calculate the significance of complete glm
model?
I explain better.
I have a glm model:
> model1 <- glm(nsp~caules+mo,family=poisson)
I make an anova of this:
> anova(model1,test="F")
Analysis of Deviance Table
Response: nsp
Terms added sequentially (first to last)
Df Deviance Resid. Df Resid. Dev       F    Pr(>F)
NULL                          6     40.315
caules     1   23.436         5     16.879 23.4360 1.291e-06 ***
mo         1    0.545         4     16.333  0.5455 0.4601808
---
Signif. codes:  0 `***' 0.001 `**' 0.01 `*' 0.05 `.' 0.1 ` ' 1

It OK, but I need to know the significance of model, I know how to calculate,
is not the problem, the question is: Exist a function that calculate this?
The deviance table that I need is:

Df Deviance Resid. Df Resid. Dev       F    Pr(>F)
NULL                          6     40.315
caules     1   23.436         5     16.879  23.4360  1.291e-06 ***
mo         1    0.545         4     16.333   0.5455  0.4601808
Total      2   23.981         4     16.333  11.9905  0.000???  ***

This is my doubt. If the function anova dont make this, is possible to
implement this in function, or is a wrong idea?

Thanks for all :)
Ronaldo
--
Steele's Plagiarism of Somebody's Philosophy:
Everybody should believe in something -- I believe I'll have
another drink.
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