search for: qd93

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2003 Jan 16
3
Overdispersed poisson - negative observation
...<- factor(c(1,2,3,4,5,6,7,8,9,10, 1,2,3,4,5,6,7,8,9, 1,2,3,4,5,6,7,8, 1,2,3,4,5,6,7, 1,2,3,4,5,6, 1,2,3,4,5, 1,2,3,4, 1,2,3, 1,2, 1)) d.AD <- data.frame(paym, alpha, beta) glm.qD93 <- glm(paym ~ alpha + beta, family=quasipoisson()) glm.qD93 ************ Code end ***************
2009 Jan 20
1
Poisson GLM
This is a basics beginner question. I attempted fitting a a Poisson GLM to data that is non-integer ( I believe Poisson is suitable in this case, because it is modelling counts of infections, but the data collected are all non-negative numbers with 2 decimal places). My question is, since R doesn't return an error with this glm fitting, is it important that the data is non-integer. How does