search for: semio3

Displaying 1 result from an estimated 1 matches for "semio3".

Did you mean: semion
2008 Sep 03
2
ANCOVA/glm missing/ignored interaction combinations
...that I 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) Devianc...