Displaying 1 result from an estimated 1 matches for "incomegrp".
2008 Dec 09
1
glm error message when using family Gamma(link="inverse")
...Any help or suggestions would be appreciated. N.B. 1<=AAMTCAREJ<=327900
> summary(data$AAMTCAREJ)
Min. 1st Qu. Median Mean 3rd Qu. Max.
1.0 404.3 1430.0 6567.0 5457.0 327900.0
> fitglm<-glm(AAMTCAREJ~sexcat+H_AGE+SmokeCat+InsuranceCat+MedicadeCat+
+ incomegrp+racecat+MARSTATJS+EdCat+bmiNewjohn,data=data,family=Gamma(link = "inverse"))
Error: no valid set of coefficients has been found: please supply starting values
In addition: Warning message:
NaNs produced in: log(x)
Thanks
John
John David Sorkin M.D., Ph.D.
Chief, Biostatistics and Infor...