Displaying 1 result from an estimated 1 matches for "quasimodel".
2005 Oct 10
3
Under-dispersion - a stats question?
Hello all:
I frequently have glm models in which the residual variance is much
lower than the residual degrees of freedom (e.g. Res.Dev=30.5, Res.DF
= 82). Is it appropriate for me to use a quasipoisson error
distribution and test it with an F distribution? It seems to me that
I could stand to gain a much-reduced standard error if I let the
procedure estimate my dispersion factor (which