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factor1
2007 Dec 20
0
test for factor effect with nested glm
...A
Df Sum Sq Mean Sq F value Pr(>F)
factor1 15 85.99 5.73 3.1332 8.702e-05 ***
factor1:factor2 42 131.75 3.14 1.7145 0.005654 **
Residuals 308 563.52 1.83 /
and recalculate the Fvalue for factor1 as follows:
/> ffactor1<-(85.99/15)/(131.75/42)
> fpop
[1] 1.827491
> 1-pf(ffactor1,15,42)
[1] 0.06285258/
My question is: am I allowed to do the same with an Analysis of Deviance
table, calculated on a glm model, as done hereafter:
/> mod2<-glm(M~factor1/factor2, family=Gamma(link=identity))
> amo...