[R] GLM family variance function

Ernesto Jardim ernesto at ipimar.pt
Mon May 13 18:09:16 CEST 2002


Still strugling with GLMs.

I need to use a different variance function for the gamma family. Has
far has I understand, assuming Y~G(\mu,\nu), the glm function uses
V(\mu)=\mu^2 , but I need to use V(\mu)=\mu^2/\nu. I have a problem of
variance proportional to the mean.



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