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This tag is very ambiguous. Dispersion is a general term for how spread apart values are. For questions related to disease dissemination content, use the tag epidemiology. For other meanings of dispersion consider using a related tag or creating a new one.
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How does R find the dispersion parameter in a GLM?
I'm working on a problem involving fitting a GLM to data and I'm curious about how R calculates the dispersion parameter. … with dispersion 1 or the given dispersion in the output, 0.68? …