On Fri, 9 Apr 2010, Sven Garbade wrote:
Hi list,
can anybody point me to the trick how glm is computing the dispersion
parameter in quasi-poisson regression, eg.
glm(...,family="quasipoisson")?
It isn't. glm() does not need (and does not compute) the dispersion
parameter.
summary.glm will
On Fri, 9 Apr 2010, Sven Garbade wrote:
Hi list,
can anybody point me to the trick how glm is computing the dispersion
parameter in quasi-poisson regression, eg.
glm(...,family="quasipoisson")?
It's the sum of squared Pearson residuals divided by the residual degrees
of freedom. For example:
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