[R] log likelihood and deviance

[Ben Bolker]

  The deviance is typically defined as -2*(log likelihood).
However, glm output may not be giving you the absolute log-likelihood --
in these applications it's often easier to drop various multiplicative
constants that appear in the likelihood, which become additive constants
in the log-likelihood or deviance, which don't affect any of the
statistical conclusions of the analysis.

On Fri, 28 Jul 2000, Alvine Bissery wrote:

> I'm fitting glm models and the summary gives the deviance of the model .
> 
> I would like to obtain the log likelihood
> How can I do ?
> 
> Thanks
> 
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