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From svattig <>
Subject Re: GLM Poisson Model - Deviance calculations
Date Thu, 19 Apr 2018 02:30:00 GMT
Yes i’m referring to that method deviance. It fails when ever y is 0. I think
R deviance calculation logic checks if y is 0 and assigns 1 to y for such

There are few deviances Like nulldeviance, residualdiviance and deviance
that Glm regression summary object has.
You might want to check those as well so the toString method doesn’t fail.

Thank you,

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