Displaying 1 result from an estimated 1 matches for "semio4".
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semion
2008 Sep 03
2
ANCOVA/glm missing/ignored interaction combinations
...want to consider two way
interactions:
> model.a<-glm(total~(temperature+humidity+semio)^2,family=poisson)
> summary(model.a)
I get the output below. But not all interactions are listed there are 4
semio categories, 1,2,3 and 4 but only 2,3,and 4 are listed in the
summary (semio2,semio3,semio4). And I cant for the life of me work out
why category one (semio1) is being ignored, missing etc.
Any help or suggestions would be most appreciated. Thanks in advance
Lara
lara.harrup at bbsrc.ac.uk
Call:
glm(formula = total ~ (temperature + humidity + semio)^2, family =
poisson)
Deviance Resid...