R help - Apr 2008 - glm(quasipoisson) with non-integer response

Hi,

I have count data that have been meddled with enough to make them non 
integers. Using glm(poisson) returns a "non integer" error but 
glm(quasipoisson) does not. Just wondering if anyone knows if I am 
violating the assumptions of a quasipoisson error structure by using 
these non-integer response data?

Thanks! I'd welcome your thoughts and/or references...

Mark

On Thu, 17 Apr 2008, Mark wrote:
> Hi,
>
> I have count data that have been meddled with enough to make them non
> integers. Using glm(poisson) returns a "non integer" error but
> glm(quasipoisson) does not. Just wondering if anyone knows if I am
> violating the assumptions of a quasipoisson error structure by using
> these non-integer response data?
No, it just assumes variance \propto mean.
> Thanks! I'd welcome your thoughts and/or references...
The help page gives the references ....

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

Hi,

I realise this was a few years ago, but any chance you could pass on the
help page that give references for this?

I have the same issue with my own data at present (noninteger count data). 

Many thanks,

Anne Oxbrough
-- 
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