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pyra1
2005 Jul 27
1
Question on glm for Poisson distribution.
...my question as an autonomous student searching in
the huge pile of papers on my desk and on the Internet but I can't find out
the solution.
Would you mind giving me some help? Please.
#########################################
I'm trying to use glm with factors:
> Pyr.1.glm<-glm(Pyrale~Trait,DataRav,family=poisson)
If I have correctly payed attention to my cyber professor explanations I
have, for the variable Pyrale which I suppose Poisson-distributed, the
following mathematical expression:
P(Pyrale=k)=exp(-m).[(m^k)/k!]
with log(m)=Intercept+Trait(i) (link function is log f...
2005 Jul 22
0
Significant difference of coefficients in glm with factors?
Hi and sorry to distur,
########### Setting #################
I'm trying to use glm with factors:
> Pyr.1.glm<-glm(Pyrale~Trait,DataRav,family=poisson)
> summary(Pyr.1.glm)
Call:
glm(formula = Pyrale ~ Trait, family = poisson, data = DataRav)
Deviance Residuals:
Min 1Q Median 3Q Max
-1.7117 -0.8944 -0.6237 0.6390 1.5224
Coefficients:
Estimate Std. Error z value Pr(>|z|)
(Intercept) 1.3350 0.2294 5.819 5....