R-beta: glm

[Thomas Lumley]

On Fri, 20 Mar 1998, G.Janacek at uea.ac.uk wrote:

> I am new to R so may well have missed the point somewhere. I would like to
> use an exponential error in my generalized linear model. It seems natural
> to restrict the Gamma family to do this ( and as one might in GLIM) by
> specifying the scale. This does not seem possible in R . Have I missed
> something?
> Sorry to raise such a trivial point but I am keen to specify the scale
> 

I believe you can do this by specifying the dispersion argument to
summary.glm()
ie
	model<-glm(y~x,family=Gamma)
	summary(model,dispersion=1)


Thomas Lumley
-----------------------
Biostatistics		
Uni of Washington	
Box 357232		
Seattle WA 98195-7232	
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