[R] offset with a factor

[Michael Dewey]

The documentation for ?offset states that you can have more than one offset.

Michael

On 20/12/2017 14:51, Bond, Stephen wrote:
> Knowledgeable useRs,
> 
> Please, advise how to use offset with a factor. I estimate monthly effects from a much bigger data set as monthly effects seem to be stable, and other variables are estimated from a small, but recent data set as there is variation in those non-seasonal coefficients.
> How can I use the seasonality estimates from the big data set as an offset provided to the small data set. I know an offset is supposed to be quantitative, but this is such a practical and sensible scenario, I feel compelled. Assume I have 11 coefs estimated with contr.sum.
> 
> Thanks everybody
> 
> Stephen
> 
> 
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-- 
Michael
http://www.dewey.myzen.co.uk/home.html