[Rd] Estimating overdispersion when using glm for count and binomial data

2015-06-24 Thread David Fletcher
parse data. I am happy to give more details if needed. David Fletcher Department of Mathematics and Statistics University of Otago Dunedin New Zealand D.J. Fletcher (2012) Estimating overdispersion when fitting a generalized linear model to sparse data. Biometrika 99:230–237 (http://biomet.oxf

Re: [Rd] Estimating overdispersion when using glm for count and binomial data

2015-06-26 Thread David Fletcher
Wood has also been in touch, and plans to put it into mgcv David Fletcher Original post: I recently proposed a simple modification to Wedderburn's 1974 estimate of overdispersion for count and binomial data, which is used in glm for the quasipoisson and quasibinomial families (se