Re: [R] glm error message when using family Gamma(link=inverse)

2008-12-10 Thread Terry Therneau
John, You have specified a model with E(y) = 1/eta where eta = X beta is the linear predictor and E(y) must be 0, since the family is Gamma and you have a lot of covariates in the model. glm now has to try to find a best linear predictor, but under the

[R] glm error message when using family Gamma(link=inverse)

2008-12-09 Thread John Sorkin
R 2.5 windows XP I am getting an error from glm() that I don't understand. Any help or suggestions would be appreciated. N.B. 1=AAMTCAREJ=327900 summary(data$AAMTCAREJ) Min. 1st Qu. Median Mean 3rd Qu. Max. 1.0404.3 1430.0 6567.0 5457.0 327900.0

Re: [R] glm error message when using family Gamma(link=inverse)

2008-12-09 Thread Prof Brian Ripley
On Tue, 9 Dec 2008, John Sorkin wrote: R 2.5 Please 1) do as the posting guide asks, and quote version numbers accurately. 2) do as the posting guide asks, and update *before* posting. That's too old a version to support here. windows XP I am getting an error from glm() that I don't

Re: [R] glm error message when using family Gamma(link=inverse)

2008-12-09 Thread John Sorkin
It appears that I have sinned and for this I surely will wear sack cloth and grovel until my period of penitence is fulfilled. I update R and my problem remains. Please see code snippet (as per posting guidelines) below R 2.8.0 windows XP summary(data$AAMTCAREJ) Min. 1st Qu. Median

Re: [R] glm error message when using family Gamma(link=inverse)

2008-12-09 Thread Charles C. Berry
On Tue, 9 Dec 2008, John Sorkin wrote: It appears that I have sinned and for this I surely will wear sack cloth and grovel until my period of penitence is fulfilled. I update R and my problem remains. Please see code snippet (as per posting guidelines) below R 2.8.0 windows XP