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

[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. 
     1.0    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 Informatics
University of Maryland School of Medicine Division of Gerontology
Baltimore VA Medical Center
10 North Greene Street
GRECC (BT/18/GR)
Baltimore, MD 21201-1524
(Phone) 410-605-7119
(Fax) 410-605-7913 (Please call phone number above prior to faxing)

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