dispersion parameter

  1. R

    Making sense of the directionality parameter

    Hello, This post has been cross-posted here. I fail to delete the current post to leave only the other post open. Feel free to delete this post if you can do that. Note: The following greek letters and equations are written in LaTex. I was reading this paper about pollen dispersal...
  2. P

    Dispersion parameter

    I have the understanding that the dispersion parameter, \phi, in generalised linear models needs to be known for deviance to meaningful or otherwise it can be estimated from the model, but no analysis of deviance can be carried out. Why is it then that in binomial and poisson models in R/S+...