[R] Gamma regression doesn't converge

Joshua Wiley jwiley.psych at gmail.com
Sun May 30 23:37:29 CEST 2010

On Sun, May 30, 2010 at 12:16 PM, Sherrie Jin <jingoosy at gmail.com> wrote:
> When I ran a Gamma regression in SAS, the algorithm converged. When I ran it
> in R, it keeps uncoverged even if I used 10000 iterations. What was wrong?
> I used the following code in R:
> glm(y ~ x1 x2 x3, control=glm.control(maxit=10000), data,
> family=Gamma(link="log"))

What is the actual glm expression you tried to run?  Does it not
converge for just one formula or when you try different formulas/data?


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Joshua Wiley
Senior in Psychology
University of California, Riverside

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