[R] GLM family variance function

[Ernesto Jardim]

Hi

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.

Regards

EJ 





-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._